I’ve used Nvidia GPUs with Linux with not many problems. These “horror stories” typically come from people who try to install a driver exactly the same way they would on Windows (by going to the Nvidia website and downloading something) whereas on most Linux distros it’s actually much easier.
On Mint, you basically just have to open the “driver manager” and click on the recommended Nvidia driver. Then reboot. :)
There is also a guide available on It’s FOSS.
Funnily enough, recently I’ve been playing the FF6 Pixel Remaster on the Deck. It’s still a very good game.
I generally think the most important thing when you’re not yet very experienced with Linux is to just pick a distro that is relatively popular, since these are usually very googleable.
My personal favorite is probably still Fedora. Pick Fedora Workstation Gnome if you want something that has the most online support and Fedora KDE if you want something with a similar workflow as Windows.
I also generally think that using a normal Linux Distro is a better choice if you don’t want to do only gaming and nothing else, since Steam OS actually makes some things a lot more difficult (you cannot easily install many programs due to its immutable nature, it only has AMD GPU support, doesn’t include even basic things like print functionality, the installation process is not the easiest, …) These things will be pretty big hurdles to overcome for a newcomer. The only real thing that is probably easier on Steam OS is that Steam is already pre-installed, but considering that you can literally install Steam on Fedora without using the terminal probably less than 10 mouse clicks, I wouldn’t consider this a very big advantage.
If you do end up going for a normal distro (like Fedora), I would btw highly recommend installing Steam not as a flatpak but as a “normal” application. This is not very difficult and will provide a much more stable experience than if you just use the Flatpak (which may be the first thing you come across in the software store). There are short tutorials available for: Fedora, Ubuntu, …
Is it possible that the driver that was installed was at some point so old that it was removed from the repos?
I can’t speak about the exact implementation on Ubuntu, but on Fedora (which I am using) the driver usually gets updated to the latest version automatically. If that’s not the case on Ubuntu or Mint, it may be worth going to the device drivers menu every few months, checking if there’s a new one available and selecting the new one if there is one.