I’ll start by plugging Harvard’s free courses catalog as well as Udemy
Edit: Gonna add 2 more I remembered-
Blender - I wish I had more time to learn it, but I did start the infamous “Donut Tutorial” once!
Watch Cartoons Online - Lots of good older stuff!
I don’t have a fave distro because I must back up my PC’s stuff first. I plan to try Bazzite, due to issues I’ve heard that my laptop has with Mint…