Not the OP but I have a similar graphics on steam. Using X11 with KDE I was using a GTX 1660 super until november last year, this year I’m using a 6700xt both worked perfectly without any tinkering. KDE Wayland tho has a lot of issues with Nvidia (devs say that is the opposite, the Nvidia driver is shit). But apparently gnome implemented workarounds for Nvidia and their Wayland support is better.

Radeon RX 580, or rather two of them: a “default” one, then one I use when running vfio-powered virtual machines or miscellaneous Vulkan projects I play with occasionally.

It doesn’t have all the newest features, but I run most games just fine.