system
A chat on subreddit /r/pcmasterrace
human
I have a Steam Deck and have gotten Arkham Asylum, Sleeping Dogs, LA Noire, Dishonored, Tomb Raider, Bioshock all working flawlessly with little to no tweaks.  Just run everything using GE Proton.
gpt
Basically this, Linux gaming has come light years in a decade. From native only &amp; some things under wine to an expectation that it will work (unless heavy anti-cheat) and in the few cases where it doesn't, assumption it will work next week. 

I used to head over to protonDB before buying anything, now I don't give it a second though. 

Even piracy under linux is almost as easy on Linux as it is under windows. With more users getting more familiar with the steam deck, I'd like to hope that the linux desktop gaming share increases by a reasonable degree in the near future.