If you’re not a techy person/power user, I would recommend staying with Kubuntu/Xubuntu (flavors of Ubuntu, that seem familiar to Windows users), or a more loved variant Linux Mint. You’ll have everything you need there, and your gaming will do just fine using Steam thanks to Proton. My first time (~2014) I went with Ubuntu, since it has an easy to use installer (like most distributions), with relatively sane default settings. Nowadays I would recommend Linux Mint or anything Debian based for the stability.