You personally don’t have to. That’s the beauty of open source, someone else can create/maintain that app and you can benefit, but only if the apis are open.

Your password is what? All I see is *******

R6 siege does not, otherwise many (most even) do. If you do decide to try Linux check https://areweanticheatyet.com/ and https://www.protondb.com/ for your specific games you want to play.