I doubt they want POSIX ever again.
They want 'me too' POSIX-enough Developer workloads right up to the Deploy phase, where they have are building cushy, hard-to-evade on-ramp to Azure.
They want 'me too' POSIX-enough Developer workloads right up to the Deploy phase, where they have are building cushy, hard-to-evade on-ramp to Azure.
How about Libraries, Compiler or Runtime?
'Me too' is in MSFT providing a "Super Runtime" in the form of WSL.
If your app doesn't require Microsoft's kernel or user space functions, why should your team?