For a slightly less extreme example of this you can look at Steamdeck. That’s running games in an emulator but in that case it’s a more mild form of emulation since it’s the same CPU architecture, it’s just emulating several APIs to make Linux look like Windows to the game.

A weird way to say that it uses Proton which is Valve's version of Wine (contributing stuff back though), which is a FOSS implementation of Windows subsystem for NT, which happens to be the only widely used subsystem for NT.

OK, guess you just aimed that at mentally normal people.