iPhone 16 pro bluetooth cuts in and out constantly.

Since purchasing this iPhone 16 Pro, the Bluetooth has been terrible. It cuts out constantly, from both pairs of my AirPod Pros, my AirPods Max (although less so), and especially my CarPlay. I'm fully up to date on iOS software, and have gone back with all of these devices with my old iPhone 13 mini, and it is rock solid. If I even put my 16 Pro in my pocket, the bluetooth cuts out. Losing airplay in the middle of tricky downtown driving is a special joy.

I have reset the Network Settings, and then completely reset the phone from scratch, no change. Is there data on this? Or do I have a bad antenna?

Please don't suggest it's my devices, the 13 mini, and even my old 10s, have no problems with any of them.