Check out stuff by studio orange, they make insanely good 3D animation. I can vouch for Land of the Lustrous personally, but heard good things about Trigun Stampede and Beastars as well.
Wit
joined 1 year ago
Kill La Kill
Idk, I feel like Mako's monologues are exactly the type of thing OP was complaining about
I agree with you on Demon Slayer having a lot of these moments, but Mugen Train specifically is the worst example you could give. They're meant to be hints that it's happening inside Rengoku's dream.