I can’t speak for OP, but I remember reading about two years ago that Linux Mint is a poor choice for gaming because Cinnamon’s compositor can’t handle more fast-paced games (even just 60 FPS) and will reduce them to a stuttery mess even if the game’s otherwise running fine. I’m not sure if this is still the case, but I did deal with it back in late 2021.
There was also the stuff about Lutris developers abandoning their support for Mint (in a letter I feel was frankly way too harsh, rude and unprofessional) due to it doing some weird stuff with system packages that made the Lutris program generate weird bugs that couldn’t be replicated in other Ubuntu-derivative distributions. However, that can be circumvented by using the Lutris flatpak.
Honestly, I do hope those are no longer issues. I have a soft spot for Linux Mint since it was the first distro I daily-drove (and has a similar UI to Windows XP my beloved), and even though I don’t use it anymore, I still follow its development from time to time and I’d love to see it getting better and universally usable for everyone.
I don’t know how or why, but I get absolutely atrocious stuttering while playing games on X11 that simply doesn’t occur with Wayland, so X is just not an option for me.