I still see people asking which distro to use, is it ok if they have an Nvidia card? How ready is Linux for a gamer? I have been 8 months now on Linux, it's about this hard to have an Nvidia card: click update. The way I switched was to populate the second m.2 slot on my MB and install Linux there, I chose Nobara, that way I had the fallback of Windows 10 if I had issues. Well, I still have Windows 10, it exists as a console with no internet access, it runs my Skyrim setup with it's 982 mods that I can't be arsed to move. Everything else is on Linux, it's the default and daily driver. Look close, you can see my system automatically updating OpenMW for me, quietly supporting my 260+ mod remaster of Morrowind. If you're wondering whether Linux is ready for gaming, yea, it is. Give it a try.
I gamed on Linux with a 1080 for a few years there and it was alright, I have gone AMD though just so I don't have to bother.
I have been using linux with a 1060 for 4 years almost 5, and it isn't that bad now, tho you need to make a lot of compromise!
At the beginning I experiencing a lot of graphical glitches! Like screen flipping when using an app that used a lot of gpu power or app going black after doing soo!
To this day on that pc I still experience black bars on the sides of apps and as even stated by doitsujin (dxvk creator):
Source: https://github.com/HansKristian-Work/vkd3d-proton/issues/465#issuecomment-744092867
And all of this on xorg to be clear! On the other hand I have an amd laptop with an igpu where I can safely say my experience was almost flawless!
I cannot report anything of the sort out of a GTX-1080. Using Linux Mint, X11 and the proprietary drivers handled by Mint's driver manager, I got reliable service in video editing, CAD and gaming. I will note, my main computer is now a Radeon system running Wayland.