I use Oticon Opn hearing aids that support iPhone Bluetooth. It worked solidly using my old iPhone 6. Recently, I upgraded to the XR. This new phone now keeps dropping the the Bluetooth connection. I've searched the Internet and tried all the recommended fixes. No fix is stable. It definitely is an Apple problem. I'm also having similar issues with the Bluetooth in my 2019 Mazda and a Bluetooth speaker.
BTW, the Oticon Opn hearing aids are fantastic. I highly recommend them.
BTW, the Oticon Opn hearing aids are fantastic. I highly recommend them.