OKAY BUT HOW?????? WHAT PROGRAM AND HOW???????
This is made in Autodesk Maya. It’s a very, very expensive software that allows you to work through the entire 3D production pipeline, and without proper guidance, the learning curve is steep. This is what I’m able to do after a year and a half of instruction and practice— this model started as a cube!
If you have a student e-mail, you can use this program for free, but working in it takes a LOT of time and dedication.
Actually being able to animate in it also requires a rig…

Which is an entirely other toolkit and skillset.
It’s a fantastic program, but a bit hard to use. Blender is a free alternative, and I’ve heard people have success in teaching themselves the workflow!