Not the GP, but the areas I use windows still for gaming is VR since I apparently have to do a lot of hacks to get it to work on my system that I'm not willing to try and fail. And then I play Lethal Company and similar, but that starts to struggle and have problem when you want to do anything modded since the modding tool available have trouble with it not being windows and break often when run though proton/wine. I've eventually got it to work, but only with hacky work arounds like changing the launch options in steam since the "Start Modded" button refused to work. I think most things running in electron fail to run through proton/wine right now (on my machine at least.)
In the end if I was playing a game alone I'd hack on it for days just to get it working so I can enjoy it on linux (hacking away at the game specifically not the linux install like needed for VR). But when I want to play a game with friends spending days (or even hours) isn't an option since they'll be onto something else by then.