Sadly I have to say: Count me in.
I don´t trust this battery. Going down too fast.
The whole last year with my 12 I charged only between 20 and 80% and my iPhone thanked me with 100% battery health after one year.
Now I leave home with 100% and charge in my office to get through the evening.
Got the 13pro last friday, so indexing and so on must be finished.
First time battery problems ever since 2012 - my first iPhone(5).
I would not hesitate to do a fresh setup and I know how to, but I´m too afraid to lose my streaks.
My whole effort this year would go to hell. This must not happen.