Whenever I use GOOGLE your service goes extreme and drains my iPhone battery using iOS 16.2. There was never a problem with iOS 15.0, that version I had an iPhone lasting 2 days. As I am typing you have drained 3%; yes I know it is an algorithm, however, it is factual as I need to charge every night when I use either Google or take/make a 5G call.
How often did you have to charge the phone before updating to iOS 16.2?
Is this a new phone as you mention only updating from iOS 15 after only 2 days?
From your comments about knowing it is an algorithm, I take it you have seen this Norton Support article that explains the High Battery use by 360 iOS. https://support.norton.com/sp/en/ca/home/current/solutions/v129651410
When updating the iOS version, it can take a little time for the new OS to settle down, and this can cause temporary extra battery drain. See this article from MacWorld. https://www.macworld.com/article/625340/ios-update-excessive-battery-drain-days.html