Ubuntu, broadly, is usually a good first distro. Lots of info available, Canonical support if that's your style, etc. Studio has some bits that are useful for the music side, but not some that are good for the gaming side. Others would be the opposite. Don't worry too much. Pretty much anything you can do on one distro you can do on another. It's mostly picking what comes pre-installed versus what you have to install.
Long term, don't worry about picking and sticking. Just try a few and see what feels best to you and your hardware. If you have a spare USB drive you can empty, put ventoy on it and a handful of live ISOs. You can get a quick poke at each and see whether one feels right.