First of all: I don't have anything against Wayland. I just wanna play Minecraft occasionally.
I am running Fedora with KDE on some HP workstation with an Nvidia 2060 FE. I am using the proprietary drivers. With the next release of Fedora (and KDE), Wayland will be the only supported Display Manager (as of my understanding). I tried switching to Wayland, but I get some weird black stuttering in Minecraft making it completely unplayable. The bad thing is that with my friends GPU, a GTX 1050, it worked just fine. On my Laptop with just the integrated Graphics too.
Have you got any tips for me? I neither want to switch the distro nor the desktop enviroment, as I'm happy with how it is. I could imagine buying a used amd gpu, but I dont really want to spend a lot of money.
For now, I am just waiting and hoping they're having it fixed in the release.
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Edit:** thanks for all the help. @Pantherina@feddit.des solution, forcing it to use xwayland made it better, but then i discovered that if I'm in fullscreen, it works perfectly fine, also without xwayland. It seems like a really dumb solution, and i'm not quite happy with it, but hey, if it works, don't touch it.
tl;dr: In fullscreen it works just fine
While I have access to a 4:3 projector, as @turkishdelight said I want to keep as much of the original as possible.