Hi, @ssa
Instead of just tossing out remarks, perhaps you should illustrate your statements in sufficient detail to demonstrate what you claim. The page you cited for the iPhone 14 supporting BT LE Audio doesn’t say anything clearly that you have pointed out specifically in text as having BT LE Audio already implemented. “low complexity codec” to me is not necessarily LC3. BT 5.3 doesn’t mean LC3 is actually up and running on a device. And as a Mac Rumors article pointed out, the status of BT LE Audio for the AirPods Pro 2.0 is a mystery: LE Audio and the Future of Hearing - #488 by jim_lewis.
I have used nRF Connect to look at protocols previously. For proprietary protocols, there is usually only a line describing an available service as such with something like “no further description available.” So, perhaps you could provide a more detailed example from your favorite BT scanner of how it divulges the inner workings of proprietary protocols to you. I could learn something useful from that.
Not to get into a flame war here, but it seems that you make assertions but don’t back them up with detailed illustrations that others can agree, Yep, that’s what it says. Others do not seem to be reaching the same conclusions as you are that BT LE Audio is up and running on the iPhone 14 or AirPods Pro 2.