You can still use git cli of course. There are still a lot of things I don't know how to do in Magit (though I'm confident I could if I wanted). Magit for staging, committing, fetching, and pushing though is so easy I don't know why you would want to switch to or open a terminal window and type commands rather than just use hotkeys. Try it!

Magit is actually one of the best pieces of software I've ever used.