Earlier quoted context omitted.
Build quality too. My iPhone XR that I am deliberately keeping on lower iOS for jail breaking reasons that when comparing the thunderbolt port to the iPhone 13. The quality lacks so much that I am unable to listen to music with a wired headphone adapter. Any slight jiggle of the adapter will cause it to disconnect. I don't want to use BT headphones.
Lightning ports very rarely fail or get loose - it’s more robust than usb-c in that regard, which is already a high bar - it’s probably dust in the port
And now that they've disconnected the thunder-bolt adapter too.
I know the quality is less than my XR. I own both and I have a box of three thunder bolt to audio cables, all have the same issues.