2225
There's still room for improvement, but Linux gaming has come a long way in a short time.
(lemmy.world)
I remember when Proton launched it was like magic playing games like Doom and Nier Automata straight from the Linux Steam client with excellent performance. I do not miss the days of having the Windows version of Steam installed separately.
I've recently picked up CP2077 again and let me tell you the experience is night and day. The gameplay is actually fun now and the story is also enjoyable since they got rid of the game breaking bugs. While the current version does not excuse the extremely subpar launch version I don't think CD Projekt Red deserves a spot on your list.
A company that definitely fits your criteria is Blizzard. All the people I know that worked there quit and a lot of them told me about a huge brain drain that was happening which judging by what we know about the code of Diablo 4 sounds reasonable. At this point the company only exists because of nostalgia and even the gamer dads are getting more and more frustrated with them.