Proton on Steam makes so many windows games work on Linux. For now, its THE main reason I will not leave Steam. No other platform has given as much love for linux.
Serious question, as I haven't looked... Does proton work on MacOS? In any case, planning on switching my desktop to Linux in a few months when I put together my next desktop (Yay, Zen 2).
I wonder if the increasing popularity of Proton will mean more developers will simply stop targetting or porting to Linux. Games like Tomb Raider and Hitman got proper Linux releases that run great. Will we see a drop in quality with Proton? Or will Proton simply mean that targetting Linux becomes cheaper? That is, there is still a need to perform proper QA of course, but only a minimal amount of coding (mostly fixing bugs found during QA).