Hey so I was trying to see if there were any like shape keys for the rig for the wings which make them like curl/uncurl from their back, or do I have to manually just scale the wings down to hide them?
Yes. In the wings rig, there's a big bone in the middle of the character's back that controls that through its own scale but the bone has a constraint that will never let it go down to 0 scale so it's always visible in viewport.
