For some reason, since the installation of Ventura, both MacOS 13, and 13.01, both my iPhone Pro 13 and my iPhone Pro 14 are returning the message "This iPhone is open in another window" when attempting to connect to iTunes through the Music app. In order to sync, it is necessary to do so via any Finder window, instead of the Music app. Not a big deal, but a minor annoyance as you have to go back and forth if you wish to work with the iTunes database as well as the iPhone's synced library. Presumably a future update to Ventura will correct this oddity.
A more disturbing issue is that while the 16" MacBook Pro M1 Pro will connect to the iPhone Pro 14, but NOT the iPhone Pro 13. The 13" MacBook Pro M1 will, however, connect to the iPhone Pro 13.
When brought in for examination, Apple's tech folks have confirmed all of this, but they have no explanation. One tech advisor mentioned that he understood that Apple may be planning to employ the M1 Pro chip in the iPhone 15 next year, and may have already modified the architecture of the iPhone 14 in such a way that it can communicate with the 16" MBP which has the newer M1 Pro chip rather than the 13" MBP M1 chip. If true, this might possibly explain the connection failure when attempting to connect the iPhone 13 (older M1 chip) to the 16" MBP (newer M1 Pro chip).