iOS 16 upgrade with Battery Issue

Since I got new 13pro max last year and my phone was great since I had from the day one. So ios 15.6 was working great and battery life was great as supposed to be.

yesterday I did upgrade iOS 16 now battery drawing so fast.

tried all possible way to increase battery life but what the hack is the point to turn of all the features to increase battery life.

very disappointing.. so upset and angry 😡 😠.

annoying…