Question about "My photo stream" notice from Apple
I'm assuming I don't have "My photo stream" because I'm not familiar with it. Is it a stand alone app or an extension?.i.e., where would it be found if I have it? As far as I know, all of my family members use iCloud. The previous iPhotos to Photos transition was a big hassle, but this doesn't sound like that.
MacBook Pro 15″, macOS 10.14