What's the difference between pixar and disney Sequels??

The main difference is probably that pixar makes it's sequels but Walt disney animasi doesn't except for The Rescuers Down Under. I believe that all of Pixar's sequels have been released theatrically while the only disney sequel that was made oleh the main studio and is considered one of the 53 Walt disney animated classics is The Rescuers Down Under. Melody from The Little Mermaid 2 for example, was probably not even considered for the lineup not only because of her age but because that film was not released theatrically atau created oleh Walt disney animasi Studios. I hope that made sense.