I’ve been using Phonak app for a little over a decade now, I’ve tried to Oticon, but had disappointing experiences.

Currently using rechargeable Phonak Audeo with an air fly for connecting to any device other than my phone to avoid Bluetooth switching chaos.

I wish iOS had better control controls over microphone routing but with iOS 26 you can change the microphone during a call to be the phone microphone, even though the hearing aids have their own microphone.