Proton kinda is that already. I mean it's not technically doing "emulation" (it's based on WINE, which literally stands for "Wine Is Not an Emulator"), but it is a reimplementation and translation layer of the Windows API, such that Windows games can run in Linux.

Anyway, it works fine (except for kernel-level anti-cheat) and has done for quite a while now.

Also, to answer your original question: absolutely you should use Linux. Everyone should, including US folks, because Windows is literally malware. Don't even run it in a VM, let alone on the bare metal machine.