I am, I have an Nvidia 5070 Ti, Aurora for my OS (from the same people as bazzite, but I'm a light gamer so I'm fine using flatpak steam/heroic/etc). the only problems I've faced are

- occasionally an online game breaks and it's usually fixed within a day or two. for example at some point a Battle.net update broke the launcher under Wine some time last year, then for a while Overwatch would intermittently crash once every few sessions. I haven't gamed on Windows in years so I can't even compare anecdotally, but I suspect Windows is probably slightly more stable with live service games. I've never had any issues with a single player game, period. (YMMV)

- DX12 performance is 10-20% worse on Nvidia. This should be improved Soon (TM) - I think the last piece is https://github.com/HansKristian-Work/vkd3d-proton/tree/descr...

- Some anticheats block Linux - the only times I've switched over to windows in the last year have been when some friends wanted me to play Marathon with them

- Running 'sidecars' alongside your games or modding works but is generally more of a hassle with wine

things I didn't expect to work but do:

- Game streaming with Sunlight works fine to Samsung TV via the TizenOS Moonlight app

- Nvidia had suspend issues for a year but those have all been sorted out the last few months

Yeah, I completely ditched windows about 3 years ago now and I haven't looked back. My taste in games definitely helps, I mostly play indies and older games.

I've only run into a few big issues. One is that gamepass doesn't work at all (of course) so I cancelled it when I switched, but between price increases and BDS I would have cancelled anyway. The other is anticheat like everyone says, but the only game I've actually run into this with is Fall Guys (I only play this every few months and it usually works with some fiddling but sometimes it doesn't). Other multiplayer games like Rocket League and all of the Valve ones have been fine.

The only issue I can remember running into on a steam game was a crash in Civ V multiplayer that had an easy to find workaround. Outside of steam I've had a few small issues with older games from gog like Arcanum and KOTOR2, but my understanding is that these are fairly buggy on windows too.

Overall experience is very good with AMD graphics. Most games run on Steam out of the box. There are also emulators for all the systems I've wanted to use. I use Faugus Launcher for other stores like BattleNet and Epic Games (Magic Arena).

For the most part the games just work, it's more system issues that I've run into where Linux suspend mode and the audio stack can be a little flaky and required Claude to diagnose and sort out.

I've been gaming on Linux (Fedora) exclusively for ~10 years, and in that time able to play any new release that interests me so long as it doesn't have egregious client side anti-cheat.