It's a Unix system under the fancy UI. Of course there are folders and of course you can go to them. You can also grep in the terminal or whatever you are used to do from Linux to your heart's content.

Personally, I think the representation of the directory tree in Linux and MacOS is equally jarring for a person who has grown up with DOS and Windows. It certainly was for me when I peeked my head out of Bill-Gates-Land as a teenager.