Controller question

Totally clueless I must say but I am reading a bit and here is what I want to do:

I want to learn how to fly before even looking into buying a drone. As far as I understand there are several good simulators on Steam and I figured I start there. Very reasonably priced too.

I need a controller. Sounds like a Radiomaster pocket ELRS is the way to go? I am a little fuzzy on if/how this connects to a computer (Mac mini) and if that also later can be used with a (some?) drone?!

Can somebody confirm this for me please?