I’ve got an RTX 2060 mobile that I’ve been linux-gaming on for a few years now, it’s been great. I was getting consistent blue screen crashes with windows, even after multiple reinstalls. Ubuntu had some minor issues out of the box, like I had to find a program to control screen brightness, but PopOS has been literally flawless.
I’ve been saying for years now that gaming on linux feels faster. Most games get better framerates than they did natively on windows, but I’ve never known if that was unique to my setup. Really neat to have more data!