I recommend Linux Mint. It’s super user friendly, and there is a lot of support out there if you run into any issues.
Now that gaming is less important for me, I feel like now is a good time to switch mainly to Linux.
Eh, gaming works just fine on Linux. The main issues are with multiplayer games, so you can still probably play most of your single player games on Linux. Steam makes it really easy, and you can play Epic and GOG with Heroic Launcher.
But as for tips:
keep a windows install as a dual boot, at least for the first few weeks, but set Linux as the default; if you can, use a separate drive for Linux; partitions work, but it’s easy to accidentally remove Linux’s boot loader when troubleshooting Windows problems
don’t get fancy with your distro, just pick a popular one
try to avoid the CLI; a lot of people will post commands to run, but if you don’t know what they’re doing, you can hose your system; instructions for GUI tools tend to be less problematic for newer users, at least from my experience
But the most important is to have fun! Solve one problem at a time, and enjoy your new system!