If you don't do online multiplayer, it pretty easy to be happy with Linux. Pick up something DRM-free on GoG or if you're a Steam user, many indie games are native as are Feral AAA and then there's Proton. If it doesn't work natively or through Proton, I just press the refund button on Steam because there's a lot of games out there that do work with my setup that it's not worth losing sleep over a handful of games.
I was shocked at how good Proton was. I accidentally became a digital nomad (went on holiday, couldn't come home due to covid restrictions, decided to never come back) and have been without my gaming desktop for months now. Age of Empires 4 came out and I really wanted to play it, so I gave steam + proton a shot. It actually worked, a AAA game released this year worked without much tweaking, I just had to get proton_ge[0]. I assume that mainline proton has caught up, so if you tried to play AoE4 on Linux today, it'll probably "just work".
