Camera

The camera to take photo by not using macro nor portrait mode is not as good as iPhone 13 Pro Max's camera. As iPhone 13 Pro Max's camera can capture bokeh photo. It is quite disappointed as it is more expensive. Why does the function been taken away? I love to take bokeh photo very much while using iPhone 13 Pro Max and it never fail me. But now I have to switch to portrait mode and yet the result is not as good as iPhone 13 Pro Max. Another thing, my current phone is iPhone 15 Pro Max but under the Apple ID, it is showing still showing iPhone 13 Pro Max with smaller fonts below showing "This iPhone 15 Pro Max". Please let me know how to change this?