For anyone interested in some gaming benchmarks, Gamer's Nexus (a reputable source with good methodology) has some numbers here: https://www.youtube.com/watch?v=ovOx4_8ajZ8
Based on their results, it sounds like there's still quite a way to go Linux gaming/Proton (ie: very inconsistent frametimes on Nvidia hardware), but it's definitely been taking steps in the right direction.
That's mainly an nVidia issue. On AMD, Linux is actually faster and more stable compared to Windows.
> Based on their results...
Do note that they make it very, very, very clear that their results are preliminary, and while they've put a whole lot of work into setting up benchmarking on Linux, they're not at all sure that they've got it all correct.
> ie: very inconsistent frametimes on Nvidia hardware
Yeah, Nvidia on Linux for non-"compute" use has always been a terrible, godawful shitshow. Given Nvidia's recent and fairly-clear disinterest in the "selling graphics cards for people to play video games with" market, [0] I can't imagine things will get consistently better anytime in the near future. [1]
[0] Why sell that silicon to video gamers when you can sell it to cryptominers and -these days- "AI" companies for a much, much, much higher profit?
[1] I mean, it took them how many Windows driver revisions for them to release somewhat-non-garbage drivers for their spanking-new fancy-ass 5000-series cards? And Windows is the only consumer OS that they care about! For video game use, the Linux drivers are gonna be starved for development resources, and -unlike ATi/AMD's drivers- noone in the world can work on them but Nvidia.
I actually get higher FPS in graphically demanding games due to vulkan producing more optimized shaders, most of the lag actually comes from context switching and translation for directx, it's absolutely GREAT one dx12 due to how little translation there is.
I'm currently working on few very targeted optimizations for several hotspots I've found out from messing around so it will be interesting if I can solve those horrible stutter issues on cyberpunk since if I can fix it (in a ghetto and janky way), so can valve.
I can also achieve higher fps in games like overwatch (dx12) out of the box on nvidia on proton experimental which is surprising as 4 years ago the input latency was unbearable and I had drops as low as 30 fps, now I can achieve consistent 600 fps with minimums of 450 whereas on windows I get as low as 220fps and averages of 500ish. I do have anticheat related drops to <300fps due to the amount of translation happens when they decide to scan memory, registry and whatnot although it lasts <1s and doesn't happen during games it seems.