Answer: No.
Because the iphone13pro and 12 cases are different, because the camera position of the iPhone13 has changed, and the hole area is larger and more convex, so the iPhone12 case can not fit into the iPhone13pro, And the iPhone13 basic version and Pro camera module area is very different, Pro camera module is very huge, so there is no way to use each other.
The phone case of Apple 12 and 13 Pro is not able to be universal. The specifications and sizes of these two phones are not the same when only used, so in this case, only the phone case can be used separately to operate