I’m also going to recommend Linux Mint, its a really friendly beginner distro. I’ll presonally recommend you do Linux Mint Debian instead of normal linux mint since regular linux mint is Ubuntu based and really loves snaps.
The default user env is cinnimon which is going to look a lot like Windows 10 making the transition easier. If you want to install steam its literally a command line away from installing and then its ready to go. That and Steam personally pushing for Linux as a viable gaming platform there are a lot more games now that work out of the box now on steam.