After Google was found tracking location history despite it being turned off, they've now changed their help page to say "some location data may be saved" even when off. Huh?
A class-action lawsuit has now been filed for this misleading behavior. https://arstechnica.com/tech-policy/2018/08/did-google-violate-users-privacy-when-it-secretly-kept-location-data/
Original tweet: https://twitter.com/DuckDuckGo/status/1034799588769718275