You can turn off Location History (and may other things) here: https://myaccount.google.com/activitycontrols https://myaccount.google.com/activitycontrols It's

You can turn off Location History (and may other things) here: https://myaccount.google.com/activitycontrols https://myaccount.google.com/activitycontrols It's not a secret and I believe you have to opt in at some point. I believe you can turn off facial recognition in Photos' settings. Disclaimer: I am a Google employee, my opinions are my own.