In Catalina Photos, how do I reveal My Photo Stream?
My Photo Stream is hidden in Photos with the update to Catalina.
I was just able to resolve this same issue several days ago with the update to Mojave 10.14.6 by clicking on the "Use as System Photo Library" in Photos>Preferences>iCloud. In Catalina, that button is now greyed out. I do not store photos in iCloud other than My Photo Stream photos, and this has not presented a problem with My Photo Stream.
In Catalina Photos, how do I reveal My Photo Stream?
MacBook Pro Retina