I agree on sentiment that tite has never been great at drawing backgrounds. Hollow World was just cylinders and sand, easiest stuff to draw basically. Some soul society buildings did look fine, then again i didn't read those parts in manga form, so idk if that was the studios doing more or less.
I have not read the last saga, but i'm hoping anime adaption will be longer (and i think it will be)
I just "read" the first chapter of Burn The Witch, and even Tite maintains that style of not drawing backgrounds with a lot of detail hehe. However, in terms of character design, it's still beautiful