On X11, Nvidia is pretty close to plug n’play (unless you install multiple kernels, but even then it isn’t so bad). Wayland has been a stuttery mess for Nvidia for a while now and there’s a long standing issue up that hopefully will be resolved in 550 release.
That said, linux desktop environment developers will likely have to adjust a large amount of environment variables (more than they probably have already) that thus far have had to be set by the User by hand. One has only to look at the Hyprland docs on setting up Nvidia to see the extent to which the bulk of the configuration is set on the User as it stands right now.