Linux is a whole OS so there's a lot you might want to look at. Luckily, if you get an error message in Linux you can search that error and find a solution.
Also helpful is reading documentation. Bazzite is based on fedora atomic so the first 2 doc links will be the most helpful. 3rd one is for general gaming on Linux. And the 4th one is the arch wiki which will give you a lot of information that will probably go over your head at this point but you might want to look at from time to time.
- https://docs.bazzite.gg/
- https://docs.fedoraproject.org/en-US/fedora-kinoite/
- https://linuxvox.com/blog/linux-for-game/
- https://wiki.archlinux.org/title/Main_page
If you want a resource on bash specifically, here is a book.