Comment by nkozyra

This is likely because the approaches and techniques are not measurably different with a "2D" animated movie in 2022 or recently, unless they're doing some retro cel animation.

Disney's last was The Princess and The Frog (which is a very good one that predates the story-in-a-box Pixar plots), which of course was still partially made in the same animation software used by others at the time.

If Disney made another traditional animation movie I suspect it would be a lot like spiderverse: mostly an aesthetic change to the existing process.