It’s been a beautiful thing to see. IIRC Proton was announced and usable sometime in 2018. Things were still rough then but it was a good sign.
When DOOM Eternal dropped it didn’t work for a while and I’d refresh the GitHub issue page daily until one day it was fixed and has worked perfectly ever since.
Apex Legends was one of the only things keeping me dualbooting Windows, then February last year it comes out that Apex added Proton compatibility for EAC thanks to the work Valve did behind the scenes collaborating with anti-cheat developers, so I nuked my Windows partition and haven’t looked back.
We’ve had some crazy momentum over the past few years and it seems things keep improving a step up every few months. Not to mention projects like GloriousEggroll’s proton that has consistently been offering patches to fix certain games earlier than they’re released with Valve’s upstram Proton Expiremental.
Id periodically gone full-time Linux on and off over the past 6 or 7 years and it was always gaming that pulled me back. Now it’s been a good 4 years aside from dualbooting for Apex and with that out of the way I haven’t really had a need to touch Windows at all since. This is truly the best time so far to be gaming on Linux :D