In this case, can I use the existing Unity animator controller right away?

rmx

If another project, another piece of work made with different illustrations, creates an animation with exactly the same name, can I use the existing Unity animator controller right away? I make all the animation and costume systems with Unity animator controller, so I have to do a lot of work every time I do extra work with Spine work, but if I can use the existing animator right away, I can make the work a lot shorter

Spinebot

If you have animations with exactly the same names and structure in a different project, you can use the existing Unity animator controller, but only if the skeletons have the same setup. This means the bones and hierarchy must match exactly for the animations to work correctly. If the skeletons differ, you will encounter issues. To streamline your workflow, you might consider automating the process of importing animations and setting up the animator controller using Unity editor scripts.