How does it actually work?

So, I may be an idiot (you are all welcome to laugh at me if this is the case), but here goes.

I used to do some AMOS back in the day, so when I heard of AOZ I downloaded it, but I am honestly confused.

How do I run my program? How do I compile it? It just looks like a fancy editor.

I read this post https://www.aoz.studio/forum-1/programing-help/new-lessons-for-new-work-environment where it says "Click on the "Run in ATOM" button on the top center of the window, it looks like an atom or flower"

There is no flower/atom at the top center of my window.

And that looks nothing like the editor in front of me, menus are different and I have neither the sidebar nor the top right buttons.

Am I completely missing something obvious?