How to create and share image cut outs on iOS 16
1. Open the Photos app on your iPhone
2. Now find a picture from your phone's gallery with a subject which you wish to cut out.
It can be a pet, a person or any other thing.
3. Now you just have to long press on the desired subject until you feel a haptic vibration. You will now notice a white border will appear around your selected subject.
4. After this you just have to tap on it to copy and then share the subject.