There's no way I'm ever going to install a proprietary OS on my computers again. Even though gaming is one of my main hobbies, with Wine and Proton being in the state they are, I have absolutely no major problems. And if, for some reason, they will go away in the future, I'll find other ways. I've been using Linux as my main OS since 2005. And yes, it also has been my gaming OS for that long.
I'm already not buying any games from companies that belong to Microsoft anymore. It did hurt me a bit when MS bought Bethesda/Zenimax, but I've found alternatives that are more than feasible. In the end, I don't have the time to play all the games I would like to anyway.