Thanks! and yikes
A week later I get a notification “hey do you want to upload this photograph of a restaurant you took at location x?”. So Google Maps was busy rifling through my photos while I was going about my day-to-day business.
Creepy, gross and repulsive.
This feature is to make privacy-invasive apps, that want to snoop and degrade functionality if they don't, behave.
For somethings I think they are legally obligated to do this. It is creepy.