If we're talking the 2010's-2019 specifically, then Winnie the Pooh should be on there
Secondly, it's Zootopia. Tangled, Moana, and the Frozens all show levels of technical mastery in that classical Disney renaissance style, but they aren't fresh in the way the renaissance movies were, because they're renaissance movies. Wreck-It Ralph is a great blending of tons of different styles of animations and art and fan service without feeling excessive, but Ralph Breaks the Internet misses the entire beat with that and falls flat and comes out as the worst of the entire era. Big Hero 6 is a superhero movie during breakthrough of Marvel's Phase One (Avengers had just come out), so like, awesome collaboration, but not super new.
Zootopia creates a whole, brand new fully fleshed world, wraps it in a buddy cop comedy, and layers that shit with every theme you could think of. Sure the themes are on the nose a bit, but it's also a world full of cartoon animals living in a city built for them to coexist. A city that, every time I watch this (which has been twice) I see something brand new about how the city functions. It's been so well constructed that it feels like a real city. One of the coolest sci-fi worlds I've seen. Though there are some questions (the skunk rug brings up some very ugly and disturbing questions) it's a movie where I have no problem asking them.