I apologize if you are already aware of this, but if you go into Settings > Battery, then look at the 24hr graph, you can tap anywhere on the graph where the battery drain is strong to see which apps are eating it up the most. From there you can investigate that app’s settings to see if there are any features you don’t need and can disable. Things like always on location services and background app refresh.

(I’m on a 12mini, which might have the worst battery life of any iPhone in recent years.)