Second vote for bazzite. It's been so great. It's my 8 year old son's first non-console experience and he's loving it.

I've had zero problems with it. The only thing I've had to do is select the proton launch option using an easy-to-find gui setting. Everything else has been normal steam GUI stuff.

It's also my first experience with an immutable distro, which has been interesting for me to learn about. Knowing about those details is completely unnecessary to run bazzite though.