Last 10 days, Monzo 1 hour 1m = 1% Chase 38m = 1% so much the same to be honest.
I really never have your battery issues with Monzo to be honest, I am not sure why it seems so broken for you but then you had weird issues with it crashing on launch that were hard to recreate I believe.
I dont doubt your having issues but I would be curious just how widespread the issues are and hope they find what’s causing it but I imagine it will be hard without dev diagnostics plugged into your phone logging.
Out of interest how long have you had your current profile for on iOS (aka since you did a fresh install without restoring a backup)?
There have been BIG issues with people running beta builds in the past and compounding problems in their backup saves over time but I dont know if 16 had as many quirks as 15 and 14 did.
But I digress, Chase has not had any major iOS battery issues for myself that I have noticed but iOS 16 has its own battery quirks still.