I actually have an old laptop with a GTX 780M and a Core i3 3rd Gen running Arch.
When I tried GNOME on it with Fedora, it defaulted to X11 on login when it detected the Nvidia card. However, mine was also an Optimus laptop, and I could mostly always get Wayland working with the iGPU on the Intel. This is how I mostly ran for a year or two without ever using the dGPU.
I need to chuck in a new SSD on that, but I could check it out let you know if anything’s changed in recent years. I don’t think wayland support for older nvidia cards have even been worked on in the last couple of years. There’s work for wayland on newer nvidia cards, but it’s mostly still spotty.
Oops! I did wonder if it could be non-Nvidia. Oh well