I had the exact same issue despite numerous optimizations that I performed to save battery. I resolved it by updating to ios 18 beta. Today, after 12 hours of usage, my phone still has 66% battery.
jonmos
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution