I’ve heard of something called “Red Eclipse”, which seems to be under CC-BY-SA.

Congratulations!

Does Katawa Shoujo count? It’s not quite FOSS, but it’s a renpy game under CC BY-NC-ND.

It seems unlikely that downgrading to 32 bit would substantially change anything. I think it means to downgrade specifically if you want to report a bug. I don’t often use Lutris though, so I’m not sure.

Maybe you need to update your package manager?

WTF? Only $20? Please tell me that people could get more. Especially if it isn’t automatic.

In the short term the answer is a clear “yes”, as it allows players to play nearly all Windows games on Linux without modifications, and game developers to ship their games on Linux without any extra costs.

How does that make Proton bad?