Yeah, that's why I'm currently only recommending Mint to people who don't do any gaming. It's kind of a shame that Mint doesn't have a KDE spin. It would be my unconditional beginner distro otherwise.
Personally I run CachyOS + KDE with native Wayland and HDR enabled system-wide. It's kind of amazing how I don't even need to clog the launch parameters of every game with a bunch of variables and tools like gamescope anymore. I just have to hit launch and all the fancy features just work.