Like most Android phones, the iPhone 14 Pro Max and the iPhone 14 Pro finally got dual-frequency GPS support that offers faster lock-ins and better accuracy.
As a result, the iPhone 14 Pro Max and iPhone 14 Pro of those who wanted to test the beta had issues with embedding, slow location tracking, and random inaccuracies. It seems these must have all been software interface issues, rather than hardware issues, as Apple released a fix in iOS 16.1 beta 2.
Instead of downgrading to iOS 16.0.1, those who have installed the 16.1 beta can simply update to the second beta and have their L1/L5 band GPS issues resolved.
The oldest, L1 band is ubiquitous, but is on a slow 1575.42 MHz frequency, while the newest L5 at 1176 MHz is fast and has a bunker-breaking range, suitable for critical commercial applications such as in the aerospace industry.
L5 is still not as widespread and it is commendable that Apple is providing it on its Pro models this year, although high-end Android phones have been swinging the dual-frequency GPS support for years.