My first distro was Mint. It's great for beginner Linux users, and it's pretty stable. It also avoids the Snap problem Ubuntu forces upon their users.

If you're looking for a more bleeding edge solution, I recommend Garuda Linux. It's Arch-based, and it has a bunch of game-related stuff already installed. It might be a tad less stable due to the Arch underbelly, but I personally like the package system (pacman) a lot more than apt. Also, you get the unmatched power of the Arch wiki when you're in trouble.