Care to give an example which anti cheat games you're talking about? I'm aware of a few ( like the most recent battlefield) which doesn't work because EA just doesn't want to allow it.

But I'm pretty sure I've played online games which have anti cheat and it just works without any convoluted install mechanisms.

Maybe these are different games than the ones you're trying to play.

I don't know when you last tried gaming on Linux. It's made a lot of improvements the past few years, but maybe the games you're mentioning are still wonky.

Sadly that has more to do with games/publishers denying Linux rather than Linux not being able to run the game. The latter is something the proton devs can work on, the former is just hoping for the gamedev/publisher to not be a dick.