They only reviewed the 2TB model w 12/19 cores so no comments on the 512 SSD issue. They give it an excellent rating overall but have some interesting comments. A notable one is they found that Apple has slowed down the performance of the M2Pro a bit from its maximum capability for the sake of longer battery life and/or less noise. Not clear if that also applies to the 16" as they haven't yet reviewed it.
Apple MacBook Pro 14 2023 review: The M2 Pro is slowed down in the small MacBook Pro
In review at Notebookcheck is the brand new MacBook Pro 14 with the M2 Pro, 32 GB RAM and a 120 Hz mini LED panel.
www.notebookcheck.net