There's still room for improvement, but Linux gaming has come a long way in a short time.
I remember when Proton launched it was like magic playing games like Doom and Nier Automata straight from the Linux Steam client with excellent performance. I do not miss the days of having the Windows version of Steam installed separately.
This week I decided to try dual booting with OpenSuse again and see how much I still need Windows for gaming. Turns out: not much. For VR. And maybe for Game Pass games if cloud gaming turns out to be crap and I cannot get a VM performant enough for games.
I also decided to dual boot Linux when I did a fresh Windows install this past weekend.
Because I hate myself I'm running Arch, but I was able to get Apex running well enough without too much fucking around. Problem is, I haven't been able to get OBS capture to run nearly as well as I can on Windows. I record at 1440/90 with high bitrate, and I haven't been able to get that working on Linux yet.
I really wanna jump full-on into Linux now and try living without windows, but sometimes I just need things to work without having to try 4 differently compiled versions of a program, and I don't know if I can get all my games running (Halo Infinite is giving me issues, if anyone has proton tips).