@zacwest posted this in Discord, which fixed it for me.
oh this makes sense. iOS 16 has a new privacy feature - it lies about the device name!
you’ll need to manually set the device name in the server’s settings (in the app) to what you want, for now, on iOS 16
it’s possible we’ll be able to ask apple for permission to get the real device name once again, but for now the app is told basically “the device was renamed from Bob’s iPhone to iPhone” so we pass that along to the notify service