Gpu brand shouldn’t be a factor, just buy whatever’s better value.
I’ve used nvidia on Wayland for a year and the issues are greatly exaggerated, and if you have a cpu with an igpu you can plug your monitor(s) into the motherboard to get around wayland-related ones (there’s probably some latency impact for games but I can’t tell).
Currently the problems (that I know of) with nvidia drivers are that colors get muted if you enable hdr, steam’s web interfaces appear corrupted or flicker unless you resize them, there is no memory spillover to ram, and the nvidia ‘x server’ settings app doesn’t support wayland.
And keep in mind that issues tend to get resolved over time. When I first built my PC the nvidia gpu would cause xwayland apps to flicker and didn’t support nigth light or transparent panels in kde. The amd igpu would turn the screen pure white if I changed windowing related kde settings. These don’t happen anymore.