Re: It is also wifi
"I also have this problem", as they say.
I have spent an inordinate amount of time trying to disable/pause as many locations as possible, and believed I'd finally achieved it. However, in looking up a retailer address, Google helpfully popped up a map and asked if I'd like directions, so I accepted, expecting to get the opportunity to enter a start point. But no, Google identified and auto-filled my exact location, presumably from my accidentally-collected WiFi info.
Put it this way - if I ever find out I'm to be terminated with a drone strike, the Android gets ditched immediately.