>>105591562
Yeah, but it's retarded like that.
On linux you have 2 display servers, xorg and wayland
Wayland is supposed to be a replacement but there's a good amount of things that have been broken for a bit.
Xorg is on its way out because newer things related to display technology don't work that well on it and they want to murder it anyways.
On Xorg most features work similarly between desktop environments (KDE, GNOME, Cinnamon), there's different compositors and shit but not a lot of disparity when it comes to features related to display.
On Wayland it's a different thing where you're fucked with less desktop environments available and each one does things differently, and VRR works here but not there or in a different way, and HDR works here or there but in a different way, and it's a complete and utter mess.
You should be able to install KDE and GNOME on Mint, but that's just not fully supported there. Primarily people install Mint instead of something like Ubuntu for its different desktop environments, not to use GNOME or KDE. But Ubuntu decided to introduce a packaging system for applications called snaps, which don't work that well, and they're trying to force that shit down people's throats, so this did also bring other people over to Mint.
Like that anon said, gamescope might be needed. Gamescope has been worked on to get some shit working because Wayland developers are fully incompetent. It's what makes HDR work on the Deck essentially. Wayland HDR support is fairly primitive and if you have an nvidia GPU, forget completely about "ootb", please, don't let that man fool you for the love of god. gamescope and nvidia are like oil and water.