Weirdly, anything after Proton 8 was not able to properly recreate the compatdata folder because of a bug in the script. I fixed the bug and get it to generate the prefix but the issue with the game not launching is still there.
I can only speak for the desktop, not laptops, when I say it works perfectly on Gnome and KDE and even Hyprland which doesn't even officially support Nvidia hardware. That said, for the first time in two years I started having big issues with a few games (though, I don't play a large number of games so take this with a grain of salt). Right now, I have an xorg session on the side to play those games. Although, I'm starting to notice it's missing some things from Wayland that I've gotten accustomed to.
Wayland is expected to get much, much better when the 555 drivers drop explicit support in May and when proton enables the wine wayland drivers.
My experience with Nvidia had been mostly seamless (although, laptops could be performing worse) up until recently when everything started bursting into flames. Electron applications are nuts, steam store doesn't even render, multiple game broke down fully. I can't even find any other use reports.
I don't get people claiming stock iPhone is private. We literally have very little idea. It's a closed system. It's private if you take Apple's word but all the other manufacturers also have similar claims. Why trust Apple and not them?
On top of that you end up locked into their ecosystem, unable to use most FOSS applications or have cut down versions of them because daddy Apple didn't like some features.
Do you need to externally encrypt the data or at least you the password field when syncing with syncthing? I mean, the traffic is encrypted already but still doesn't feel right.
I don't think you will ever be able to use Wayland on Nvidia without enabling modesetting which sounds like you haven't.