diff --git a/packages/@ember/-internals/environment/lib/env.ts b/packages/@ember/-internals/environment/lib/env.ts
index bef9f01d815..64e9c51766d 100644
--- a/packages/@ember/-internals/environment/lib/env.ts
+++ b/packages/@ember/-internals/environment/lib/env.ts
@@ -66,21 +66,6 @@ export const ENV = {
 
   STRUCTURED_PROFILE: false,
 
-  /**
-    Whether to insert a `<div class="ember-view" />` wrapper around the
-    application template. See RFC #280.
-
-    This is not intended to be set directly, as the implementation may change in
-    the future. Use `@ember/optional-features` instead.
-
-    @property _APPLICATION_TEMPLATE_WRAPPER
-    @for EmberENV
-    @type Boolean
-    @default true
-    @private
-  */
-  _APPLICATION_TEMPLATE_WRAPPER: true,
-
   /**
     Whether to use Glimmer Component semantics (as opposed to the classic "Curly"
     components semantics) for template-only components. See RFC #278.
diff --git a/packages/@ember/-internals/glimmer/lib/component-managers/outlet.ts b/packages/@ember/-internals/glimmer/lib/component-managers/outlet.ts
index 39cf2cfd29c..4503ffcb43d 100644
--- a/packages/@ember/-internals/glimmer/lib/component-managers/outlet.ts
+++ b/packages/@ember/-internals/glimmer/lib/component-managers/outlet.ts
@@ -1,6 +1,4 @@
-import { ENV } from '@ember/-internals/environment';
 import type { InternalOwner } from '@ember/-internals/owner';
-import { guidFor } from '@ember/-internals/utils';
 import { assert } from '@ember/debug';
 import EngineInstance from '@ember/engine/instance';
 import { _instrumentStart } from '@ember/instrumentation';
@@ -17,7 +15,6 @@ import type {
   VMArguments,
   WithCreateInstance,
   WithCustomDebugRenderTree,
-  WithDynamicTagName,
 } from '@glimmer/interfaces';
 import type { Nullable } from '@ember/-internals/utility-types';
 import { capabilityFlagsFrom } from '@glimmer/manager';
@@ -26,7 +23,6 @@ import { createConstRef, valueForRef } from '@glimmer/reference';
 import { EMPTY_ARGS } from '@glimmer/runtime';
 import { unwrapTemplate } from '@glimmer/util';
 
-import type { SimpleElement } from '@simple-dom/interface';
 import type { DynamicScope } from '../renderer';
 import type { OutletState } from '../utils/outlet';
 import type OutletView from '../views/outlet';
@@ -211,36 +207,5 @@ export class OutletComponentDefinition
 }
 
 export function createRootOutlet(outletView: OutletView): OutletComponentDefinition {
-  if (ENV._APPLICATION_TEMPLATE_WRAPPER) {
-    const WRAPPED_CAPABILITIES = Object.assign({}, CAPABILITIES, {
-      dynamicTag: true,
-      elementHook: true,
-      wrapped: true,
-    });
-
-    const WrappedOutletComponentManager = class
-      extends OutletComponentManager
-      implements WithDynamicTagName<OutletInstanceState>
-    {
-      getTagName() {
-        return 'div';
-      }
-
-      getCapabilities(): InternalComponentCapabilities {
-        return WRAPPED_CAPABILITIES;
-      }
-
-      didCreateElement(component: OutletInstanceState, element: SimpleElement): void {
-        // to add GUID id and class
-        element.setAttribute('class', 'ember-view');
-        element.setAttribute('id', guidFor(component));
-      }
-    };
-
-    const WRAPPED_OUTLET_MANAGER = new WrappedOutletComponentManager();
-
-    return new OutletComponentDefinition(outletView.state, WRAPPED_OUTLET_MANAGER);
-  } else {
-    return new OutletComponentDefinition(outletView.state);
-  }
+  return new OutletComponentDefinition(outletView.state);
 }
diff --git a/packages/@ember/-internals/glimmer/tests/integration/application/debug-render-tree-test.ts b/packages/@ember/-internals/glimmer/tests/integration/application/debug-render-tree-test.ts
index 516cbc2e7c0..c233e605dfb 100644
--- a/packages/@ember/-internals/glimmer/tests/integration/application/debug-render-tree-test.ts
+++ b/packages/@ember/-internals/glimmer/tests/integration/application/debug-render-tree-test.ts
@@ -1637,9 +1637,7 @@ if (ENV._DEBUG_RENDER_TREE) {
             args: { positional: [], named: {} },
             instance: undefined,
             template: outlet,
-            bounds: ENV._APPLICATION_TEMPLATE_WRAPPER
-              ? this.nodeBounds(this.element)
-              : this.elementBounds(this.element!),
+            bounds: this.elementBounds(this.element!),
             children: [
               this.outlet({
                 type: 'route-template',
diff --git a/packages/@ember/-internals/glimmer/tests/integration/application/hot-reload-test.js b/packages/@ember/-internals/glimmer/tests/integration/application/hot-reload-test.js
index 0fee258a11b..d004d314e60 100644
--- a/packages/@ember/-internals/glimmer/tests/integration/application/hot-reload-test.js
+++ b/packages/@ember/-internals/glimmer/tests/integration/application/hot-reload-test.js
@@ -13,10 +13,8 @@ moduleFor(
   class extends ApplicationTestCase {
     constructor() {
       super(...arguments);
-      this._APPLICATION_TEMPLATE_WRAPPER = ENV._APPLICATION_TEMPLATE_WRAPPER;
       this._TEMPLATE_ONLY_GLIMMER_COMPONENTS = ENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS;
 
-      ENV._APPLICATION_TEMPLATE_WRAPPER = false;
       ENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS = true;
 
       let didCreateReloader = (reloader) => {
@@ -81,7 +79,6 @@ moduleFor(
 
     teardown() {
       super.teardown();
-      ENV._APPLICATION_TEMPLATE_WRAPPER = this._APPLICATION_TEMPLATE_WRAPPER;
       ENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS = this._TEMPLATE_ONLY_GLIMMER_COMPONENTS;
     }
 
diff --git a/packages/@ember/-internals/glimmer/tests/integration/application/rendering-test.js b/packages/@ember/-internals/glimmer/tests/integration/application/rendering-test.js
index 1b56761835f..83028cc0c6e 100644
--- a/packages/@ember/-internals/glimmer/tests/integration/application/rendering-test.js
+++ b/packages/@ember/-internals/glimmer/tests/integration/application/rendering-test.js
@@ -1,6 +1,5 @@
 import { moduleFor, ApplicationTestCase, strip } from 'internal-test-helpers';
 
-import { ENV } from '@ember/-internals/environment';
 import Controller from '@ember/controller';
 import Route from '@ember/routing/route';
 import { service } from '@ember/service';
@@ -13,29 +12,7 @@ import { runTask } from '../../../../../../internal-test-helpers/lib/run';
 moduleFor(
   'Application test: rendering',
   class extends ApplicationTestCase {
-    constructor() {
-      super(...arguments);
-      this._APPLICATION_TEMPLATE_WRAPPER = ENV._APPLICATION_TEMPLATE_WRAPPER;
-    }
-
-    teardown() {
-      super.teardown();
-      ENV._APPLICATION_TEMPLATE_WRAPPER = this._APPLICATION_TEMPLATE_WRAPPER;
-    }
-
-    ['@test it can render the application template with a wrapper']() {
-      ENV._APPLICATION_TEMPLATE_WRAPPER = true;
-
-      this.addTemplate('application', 'Hello world!');
-
-      return this.visit('/').then(() => {
-        this.assertComponentElement(this.element, { content: 'Hello world!' });
-      });
-    }
-
     ['@test it can render the application template without a wrapper']() {
-      ENV._APPLICATION_TEMPLATE_WRAPPER = false;
-
       this.addTemplate('application', 'Hello world!');
 
       return this.visit('/').then(() => {
diff --git a/packages/@ember/application/tests/visit_test.js b/packages/@ember/application/tests/visit_test.js
index a33ba9ac260..ab4f71d9cf0 100644
--- a/packages/@ember/application/tests/visit_test.js
+++ b/packages/@ember/application/tests/visit_test.js
@@ -15,7 +15,6 @@ import Engine from '@ember/engine';
 import Route from '@ember/routing/route';
 import { Component, helper, isSerializationFirstNode } from '@ember/-internals/glimmer';
 import { compile } from 'ember-template-compiler';
-import { ENV } from '@ember/-internals/environment';
 
 function expectAsyncError() {
   RSVP.off('error');
@@ -26,7 +25,6 @@ moduleFor(
   class extends ApplicationTestCase {
     teardown() {
       RSVP.on('error', onerrorDefault);
-      ENV._APPLICATION_TEMPLATE_WRAPPER = false;
       super.teardown();
     }
 
@@ -52,7 +50,6 @@ moduleFor(
         rootElement,
       };
 
-      ENV._APPLICATION_TEMPLATE_WRAPPER = false;
       return this.visit('/', bootOptions).then(() => {
         assert.equal(
           rootElement.innerHTML,
@@ -75,8 +72,6 @@ moduleFor(
         _renderMode: 'serialize',
       };
 
-      ENV._APPLICATION_TEMPLATE_WRAPPER = false;
-
       return this.visit('/', bootOptions)
         .then((instance) => {
           assert.ok(
diff --git a/packages/ember/tests/routing/toplevel_dom_test.js b/packages/ember/tests/routing/toplevel_dom_test.js
index 57c5d7aa701..805bd02f064 100644
--- a/packages/ember/tests/routing/toplevel_dom_test.js
+++ b/packages/ember/tests/routing/toplevel_dom_test.js
@@ -1,32 +1,9 @@
-import { ENV } from '@ember/-internals/environment';
 import { moduleFor, ApplicationTestCase } from 'internal-test-helpers';
 
 moduleFor(
   'Top Level DOM Structure',
   class extends ApplicationTestCase {
-    constructor() {
-      super(...arguments);
-      this._APPLICATION_TEMPLATE_WRAPPER = ENV._APPLICATION_TEMPLATE_WRAPPER;
-    }
-
-    teardown() {
-      super.teardown();
-      ENV._APPLICATION_TEMPLATE_WRAPPER = this._APPLICATION_TEMPLATE_WRAPPER;
-    }
-
-    ['@test topmost template with wrapper']() {
-      ENV._APPLICATION_TEMPLATE_WRAPPER = true;
-
-      this.addTemplate('application', 'hello world');
-
-      return this.visit('/').then(() => {
-        this.assertComponentElement(this.element, { content: 'hello world' });
-      });
-    }
-
     ['@test topmost template without wrapper']() {
-      ENV._APPLICATION_TEMPLATE_WRAPPER = false;
-
       this.addTemplate('application', 'hello world');
 
       return this.visit('/').then(() => {
diff --git a/packages/internal-test-helpers/lib/test-cases/abstract-application.ts b/packages/internal-test-helpers/lib/test-cases/abstract-application.ts
index bfae6b31741..05acec12a80 100644
--- a/packages/internal-test-helpers/lib/test-cases/abstract-application.ts
+++ b/packages/internal-test-helpers/lib/test-cases/abstract-application.ts
@@ -1,6 +1,5 @@
 import type { EmberPrecompileOptions } from 'ember-template-compiler';
 import { compile } from 'ember-template-compiler';
-import { ENV } from '@ember/-internals/environment';
 import AbstractTestCase from './abstract';
 import { runDestroy, runTask, runLoopSettled } from '../run';
 import type { BootOptions } from '@ember/engine/instance';
@@ -48,9 +47,7 @@ export default abstract class AbstractApplicationTestCase extends AbstractTestCa
       return this._element;
     }
 
-    let element = document.querySelector(
-      ENV._APPLICATION_TEMPLATE_WRAPPER ? '#qunit-fixture > div.ember-view' : '#qunit-fixture'
-    );
+    let element = document.querySelector('#qunit-fixture');
 
     return (this._element = element);
   }
diff --git a/tests/docs/expected.js b/tests/docs/expected.js
index f781f6fe1b7..fa28446307c 100644
--- a/tests/docs/expected.js
+++ b/tests/docs/expected.js
@@ -7,7 +7,6 @@ module.exports = {
     'LOG_STACKTRACE_ON_DEPRECATION',
     'LOG_VERSION',
     '[]',
-    '_APPLICATION_TEMPLATE_WRAPPER',
     '_DEBUG_RENDER_TREE',
     '_DEFAULT_ASYNC_OBSERVERS',
     '_NO_IMPLICIT_ROUTE_MODEL',
diff --git a/tests/index.html b/tests/index.html
index 97c3ba250b6..ed768814b5e 100644
--- a/tests/index.html
+++ b/tests/index.html
@@ -28,7 +28,6 @@
 
         if (edition === 'octane') {
           EmberENV._TEMPLATE_ONLY_GLIMMER_COMPONENTS = true;
-          EmberENV._APPLICATION_TEMPLATE_WRAPPER = false;
           EmberENV._DEFAULT_ASYNC_OBSERVERS = true;
         }
 
diff --git a/tests/node/app-boot-test.js b/tests/node/app-boot-test.js
index 0f9aee5519a..92ce303be90 100644
--- a/tests/node/app-boot-test.js
+++ b/tests/node/app-boot-test.js
@@ -36,7 +36,7 @@ QUnit.module('App Boot', function (hooks) {
     return this.renderToHTML('/').then(function (html) {
       assert.htmlMatches(
         html,
-        '<body><div id="EMBER_ID" class="ember-view"><div id="EMBER_ID" class="ember-view"><h1>Hello World</h1><div><div id="EMBER_ID" class="ember-view"><p>The files are *inside* the computer?!</p></div></div></div></div></body>'
+        '<body><div id="EMBER_ID" class="ember-view"><h1>Hello World</h1><div><div id="EMBER_ID" class="ember-view"><p>The files are *inside* the computer?!</p></div></div></div></body>'
       );
     });
   });
@@ -50,7 +50,7 @@ QUnit.module('App Boot', function (hooks) {
     return this.renderToHTML('/').then(function (html) {
       assert.htmlMatches(
         html,
-        '<body><div id="EMBER_ID" class="ember-view"><h1><a id="EMBER_ID" href="/photos" class="ember-view">Go to photos</a></h1></div></body>'
+        '<body><h1><a id="EMBER_ID" href="/photos" class="ember-view">Go to photos</a></h1></body>'
       );
     });
   });
@@ -64,7 +64,7 @@ QUnit.module('App Boot', function (hooks) {
     return this.renderToHTML('/').then(function (html) {
       assert.htmlMatches(
         html,
-        '<body><div id="EMBER_ID" class="ember-view"><h1><a id="EMBER_ID" href="/photos" class="ember-view">Go to photos</a></h1></div></body>'
+        '<body><h1><a id="EMBER_ID" href="/photos" class="ember-view">Go to photos</a></h1></body>'
       );
     });
   });
@@ -80,10 +80,7 @@ QUnit.module('App Boot', function (hooks) {
     });
 
     return this.renderToHTML('/').then(function (html) {
-      assert.htmlMatches(
-        html,
-        '<body><div id="EMBER_ID" class="ember-view"><h1><b>Hello world</b></h1></div></body>'
-      );
+      assert.htmlMatches(html, '<body><h1><b>Hello world</b></h1></body>');
     });
   });
 
@@ -99,19 +96,13 @@ QUnit.module('App Boot', function (hooks) {
     let promises = [];
     promises.push(
       this.renderToHTML('/').then(function (html) {
-        assert.htmlMatches(
-          html,
-          '<body><div id="EMBER_ID" class="ember-view"><p><span>index</span></p></div></body>'
-        );
+        assert.htmlMatches(html, '<body><p><span>index</span></p></body>');
       })
     );
 
     promises.push(
       this.renderToHTML('/photos').then(function (html) {
-        assert.htmlMatches(
-          html,
-          '<body><div id="EMBER_ID" class="ember-view"><p><em>photos</em></p></div></body>'
-        );
+        assert.htmlMatches(html, '<body><p><em>photos</em></p></body>');
       })
     );
 
@@ -150,10 +141,7 @@ QUnit.module('App Boot', function (hooks) {
     this.template('application', "<div {{action 'foo'}}></div>");
 
     return this.renderToHTML('/').then(function (html) {
-      assert.htmlMatches(
-        html,
-        '<body><div id="EMBER_ID" class="ember-view"><div></div></div></body>'
-      );
+      assert.htmlMatches(html, '<body><div></div></body>');
     });
   });
 });
diff --git a/tests/node/fastboot-sandbox-test.js b/tests/node/fastboot-sandbox-test.js
index 72427206550..1ca6af7df26 100644
--- a/tests/node/fastboot-sandbox-test.js
+++ b/tests/node/fastboot-sandbox-test.js
@@ -56,7 +56,6 @@ function buildSandboxContext(precompile) {
     `
 var EmberENV = {
   _TEMPLATE_ONLY_GLIMMER_COMPONENTS: true,
-  _APPLICATION_TEMPLATE_WRAPPER: false,
   _DEFAULT_ASYNC_OBSERVERS: true,
   _JQUERY_INTEGRATION: false,
 };`,