Valve is gonna save the day once again.
Now we just need to be as good as (or better than) Apple's Rosetta.
[1] https://www.xda-developers.com/arm-translation-layer-steam-f...
Valve is pushing mostly open source to expand to other platforms which is a win win for everybody.
Thousands of game studios are gone now, and supporting their software is important legacy work. You don't have to appreciate that, but I do. I do not give the faintest fuck about the opportunity cost you bemoan towards native UNIX games when I do this. That's your problem, not mine.
If Proton is "Linux" games, so is running GNU/Linux under a VM a proper distro.
I have faith!