So your argument is that because there are some exceptions to a rule, the opposite of that rule is true.

Of course it does. It prevents oligopolies.

You say “especially” when it’s more like “almost exclusively”. Almost all games not bundled with malware (kernel-level anti-cheat) work with zero or minimal tweaking. It gets a little harder if you like to play with mods, though.

Linux gaming has come a long way. Back when The Witcher 3 came out, there was no Proton and running a game with Wine involved a lot of tweaking. Even then, I got better FPS than in Windows but it was hard. Now, I don’t even think about it. I just assume it’ll work.