photos.app share library command missing
I upgraded my MacBook Pro 2014 to Ventura (13.0.1) and am using Photos ver. 8.0 (511.0.180). I would like to share my library with my husband (and vice versa). Our Photos apps appear different even though they have the same build numbers. He has a Settings>Share Library command, and I do not. Did something go awry with my Ventura update, which I did using Software Update? How can I re-install either Photos or Ventura, or what should I do? This screen shot is of my Photos Settings, and there is no Share Library:
MacBook Pro Apple Silicon