That's mostly due to the Volume setup they use, to film without green screen, in some/most scenes.
You can clearly see it in kenobi, I guess in Mandalorian Season 1 it wasn't that noticeable because it was brand new.
And that's why Andor feels so much larger and grounded, a lot of on-location shooting, with classic green screens for ships cockpit and others.
Edit: and I re-read your post only now to notice you already talked about the Volume... I need to get a nap
o7