Maybe we are already 97% or something. I don't have games left anymore which I want to play and don't work in Linux. But of course, very limited perspective. Anti-cheat engines are the biggest problems still, while EAC and BattleEye are natively supported already.

I think we’re at 90% right now.

I’ve been gaming on Linux (both retro and new games) for the past 3 or 4 years and the vast majority run with either no or minimal, identical config.

Do they perform the same as they would on Windows though? No FPS loss for example?

It's been a while since I paid attention, but when I last looked it was a spread; some games were slower on Linux, but some were faster.

I’ve not noticed a difference.

I did gpu pass through to a windows vm to test a while ago and didn’t get any major difference in fps.

I mean, other than very old games (try running Sid Meier's Pirates under proton! it's barely playable) and user-hostile games (if the developers use anticheats which block Linux on purpose, that's not really Linux's fault) we area at least 95% of the way there.

Sure, there will always be someone who will complain that "Valorant doesn't run on Linux" but the overwhelming majority of games do.

The plans of the Riot Games are not promising. Their new anti-cheat engine is going to run on Kernel level and log everything from the computer, and uploads this information who knows where.

It's getting dramatically better partially due to the steamdeck since it runs Linux. Some games might not still work in the future though due to kernel level anticheats mostly only supporting windows.

Maybe they will add Linux support in the future (for better or worse)