Well yes but overleaf makes it possible to work on it with a mate, on any device without having to install anything, and it also saves your progress online so you don’t lose it or forget you document at home.
If your not seeing were i’m going it’s perfect for school project. Through high school and college i’ve done all my projects with it… I think that’s where it shines.
Yeah to be fair if you do all the homework with LaTeX there’s no reason not to set up your machine.
I’ve even heard of someone who even used it to take notes in class… Honestly I wouldn’t dare to try and learn that!
But yes, that’s when the macros and possibilities you don’t have on overleaf becomes really good to have.