I did reproduce an intermittent problem further on, in ThreadLocalStatics.TLSTesting.ThreadLocalStatics_Test. It segfaults or fails on assertions such as File: /runtime/src/coreclr/gc/gc.cpp, Line: 4834 or File: /runtime/src/coreclr/nativeaot/Runtime/MethodTable.cpp, Line: 73 which suggests a GC-related issue. This repeats only on hardware, QEMU passes fine.
Originally posted by @tomeksowi in #119203 (comment)