No probs! And that sounds correct. Doesn’t have to be supported by the game to work, it should be supported by everything. (Trust you’re using the wine-glorious-eggroll-whateveritis option in Lutris, as well?) And yeah, you’re not going to see much difference on ‘old’ games (well, depending on what it is) - if you can already run it at your monitor’s refresh rate, it just has the effect of making everything a little blurrier, it can’t improve the FPS any.