It’s true. Doesn’t mean you have to suddenly be fluent in all aspects of music at once or know the difference between sforzando and sforzato.
DAWs are there to facilitate the desires of people who want to make music, and all its features were designed to implement something that people who knew what they wanted could easily grasp and make work for them.
Many of them already had to learn theory in order to be able to articulate wtf they wanted the software to do, ie “turn up the tremolo a little” instead of “uh, ya know the wavy thing? The wavy-fier? The one that makes it go ‘BUHbuhBUHbuh’… no dude! Not the echoey-instant-space-canyon one, I mean the wavy thing bro…”
Point is, you’re asking valid questions about how to do this stuff but you’re maybe trying to jump the line a little, because when one says “I don’t know how to do this thing” it really means “I have not the first idea what I’m doing at all beside the fact that I want to do this” and that’s ok. That’s why learning a basic vocabulary of musical terms (which are universally understood whether you’re Machinedrum or Yoyo Ma) will also help you better learn exactly what you want to.
tl;dr - music software only expedites and amplifies existing notions of the larger body of musical/sound art technique. You’re unique and special but not likely at this point to have ideas so unique and special that no software can accommodate you. Just take a fucking music appreciation class online and learn some basic patter you twat. 