Yeah, it's unbelievable how good it looks, how good the animation is. I've seen some stuff on the techniques they used to get realistic animations with rotoscoping (maybe I have the wrong name there), but pretty impressive, and I love that style of like ... "it's more real than reality," like extra expressiveness and fluidity of motion, it's like watching ballet from the audience, a sort of gracefulness to the animation that's almost more real than real.
I feel the same about Lady and the Tramp. Lady and the Tramp is a fucking beautiful movie (y'know, racist siamese cats or the stereotypical accents/food portion aside), it's a gorgeous movie that gets some things right better than a lot of movies since then. For instance Lady's first night alone, she whines like a little puppy, and the whines are *perfect,* where as I think most other depictions of dogs since, I dunno, they humanize them in a way and the barks/whines/whinnying isn't accurate. Lady's whines kinda triggered flashbacks in me to when my dog was a puppy and his insufferably whining at night when I was crate training him.
The style of the art is like Red Dead 2 or Rockstar's lighting style, where it's almost dreamlike, kinda like how you remember something, not like how it actually is. There was a Vox or Verge/Polygon video about RDR2's art style being this popular manifest destiny-like art style from the 19th century, I forget the name of it.