I already mentioned pretendo in a comment. But for anyone how wants to play super Mario maker on there Wii u after the shutdown. You can switch networks (you of course need to (soft)mod your Wii u).
In super Mario maker uploading, playing uploaded levels, death point, world record and staring them works. There is still a lot missing. But you can still play.
Some games and features are behind a payed beta(which I hate). But all super Mario maker stuff is free.
Seeing wara wara plaza alive on my Wii u is amazing with random Mii’s and post from miiverse.
I already switched my Wii u over to the pretendo network. Uploading and playing levels already work in super Mario maker.
It’s still far of from a drop in replacement, but miiverse, wara wara plaza and som in game things are working.
Depending on the issue it may be fixed now that Wayland is better supported on Nvidia.
X.org always had issues running multiple displays with different refresh rate for example.
But don’t know your exact problem of course. May be something different. I think there will be some big leaps made with nkv (the new open source drivers for Nvidia cards), but it gonna take some time.
You can always try something like pop_os on a live usb. They have the Nvidia drivers installed and use Wayland I think.