Same here. I was good for a few days after the 12.3 update but the issue presented again after some usage. I first noticed it on conference calls, and sometimes that's not the same issue, so I opened up Apple Music and ran through a song and it happened a few times. If the issue is rooted in some sort of cache/memory problem as others mentioned, perhaps the update process cleared it temporarily and now we are beginning to max out again.

DFU worked for me here. Not sure if you've done it before - but the button combo is finicky and must be executed properly. Also, DFU has no splash, but your Mac will recognize it in DFU. Good luck to you.

Same. iPhone 16 Pro. Must be some incompatible condition we've triggered...but I'm unable to take this update as well...