[tester756]

Who, when creating new OSes focuses on really old, consumer, nothing unusual hardware?

Second, for compilers you have projects like LLVM that's like a framework for building compilers where those companies like Intel, AMD, Samsung, etc contribute.

[pjmlp]

Not everyone has the opportunity to only have new computers, especially in many third world countries.

LLVM shouldn't turn into compiler monoculture.