[fsmv]

The same exact binary working isn't going to happen without runtime performance penalties because the syscall numbers are different on different platforms. Also I believe on windows it's not possible to avoid linking some system libraries to use windows.h stuff, there is no stable ABI.

[pjmlp]

Linux is the exception among modern OSes to have a stable syscall ABI, everyone else offers only the proper OS API as entry point into OS services.

Once upon at time, static linking was the only thing OSes were capable of, all of them moved away from that, and there is no turning back outside embedded bare metal deployments, just become some people are obsessed with static linking.

[actionfromafar]

Though msvcrt.dll has a stable subset of functions available on all Windows versions.