Switched about a year ago. Linux is surprisingly plug and play these days. So far installed Mint on two systems: 15 years old laptop with Nvidia GPU, 10 years old desktop with AMD GPU. Also have a new built gaming PC with Bazzite. Now I do 100% of my gaming on linux.

I dont think I used the terminal twice and everything just works. Unless you have some niche hardware switching should be a piece of cake.

It may, depending on what flavor of Linux you end up running. There are a lot of them and even the "better" ones are better at specific things. Some are great at running forever without ever needing to restart your computer, others might be better at handling the newest or oldest hardware out there.

So, yes, Linux is definitely good and stable enough to provide you the experience you expect from an OS, but it doesn't mean that any Linux will be like that.

If you don't want to deal with the command line, I recommend a distro from Ublue: Bluefin/Aurora for a general purpose OS, or Bazzite for something pre-configured with tools that improve support for games and windows apps.

UBlue distros are good at giving you something that just works and you won't ever need to mess with the terminal or config files unless you're trying to add more stuff to the OS, as opposed to just trying to tinker with what's already there (in fact by default it doesn't even let you modify a lot of config files that other distros might often suggest you do)

I’m running Ubuntu and the graphics driver has been fine.

Been using linux exclusively for at least 5 years, as the main OS for 10 years. The only time I remember the graphics driver breaking by itself, without me trying to do something dumb, was some 8 years ago with Ubuntu. This is not a problem anymore, with either Debian- or Arch-based distros.