Probably will depend on what platform(s) you're targeting and/or your appetite for dealing with breakage. You can avoid libc on Linux due to its stable syscall interface, but that's not necessarily an option on other platforms. macOS, for instance, can and does break syscall compatibility and requires you to go through libSystem instead. Go got bit by this [0]. I want to say something similar applies to Windows as well.

This Unix StackExchange answer [1] says that quite a few other kernels don't promise syscall compatibility either, though you might be able to somewhat get away with it in practice for some of them.

[0]: https://github.com/golang/go/issues/17490

[1]: https://unix.stackexchange.com/a/760657