What amazes me is that on Steam they no longer make the distinction (in the standard library view) between Windows and Linux: every game is assumed to launch in Linux, using Proton behind the scenes it needed. There's still a "Linux games" toggle but now every game appears ungrayed by default.

And it mostly works! At least for my games library. The only game I wasn't able to get to work so far is Space Marine 2, but on ProtonDB people report they got it to work.

As for the rest: I've been an exclusive Linux user on the desktop for ~20 years now, no regrets.