Always check protondb first. That will tell you how well the game works, and how to get it working. (I haven't checked what it says about RA2; there are games t

Always check protondb first. That will tell you how well the game works, and how to get it working. (I haven't checked what it says about RA2; there are games that really don't work.) I actually thought the launchers (Steam and Heroic) would automatically take care of that, but that doesn't always seem to be the case.