I ran my 1060 just fine for a few year. Nvidia has an official, but proprietary driver that might not run well on some distro’s. Personally I haven’t had any issues, though it would be better to stick with xorg and not wayland. Wayland support on nvidia I’ve heard isn’t great, but it does work
You can definitely write C# code based on all open source things. Microsoft open sourced C# and it is used on Linux too