AirPlay not Working after upgrade to iPhone 16 Pro Max

I am not able to use AirPlay with my new iPhone 16 Pro Max when connecting to my Sony Bravia VH21 tv. AirPlay worked fine with my previous iPhone 13 Pro Max that I traded in when I upgraded to the 16. Both devices are connected to the same wifi. I have no VPN. Both my tv and iPhone are up to date and my previous 13 Pro Max was at the same ios as my 16 (ios 18.4.1) Sony's site says the tv is compatible. All options for AirPlay on the TV are set correctly. I have tried resetting network settings, toggling settings, everything I've seen on forums and reddit. Spent 2 hours on the phone with first and second level apple tech support and it still will not work. Mirroring works fine so the phone can communicate with the tv. But AirPlay will not work. This unsolvable issue is in addition to the new 16 Pro Max not connecting through Bluetooth to some of my external speakers (my 13 pro max connected fine to all) and the screen going completely black and being unable to wake the screen up on my own (the screen began working after about 15 minutes.) I also had the battery lag issue out the box and had to factory reset the phone and set it up as a new device without pulling over from a backup. I am having consistent issues with this brand new phone.