Iphone 16 pro battery problems

The number of hours of Screen time is going to be based on what it is that you are doing during that screen time. Processor intensive tasks such as social media, video playing and recording, graphics intensive games, etc. will consume much more battery that other simple tasks. If you go to Settings>Battery, what kind of grid are you seeing there for battery level. Also when you see your Battery Usage by App, what is using the highest percentage of your battery.

The apps you listed are going to use a lot of battery if you are on them constantly as indicated by your chart. You only had 6 minutes of idle time.