I know next to nothing about tracking, but when I turn location settings off on my Samsung and then visit big chain sites, like Home Depot, Target, if I ask for the nearest store location, I’ll get a response saying something like, “Can’t find your location.”
Because the app or browser is trying to access your phone’s location features from the phone.
Not the phone network. Which is stored at the phone company’s data storage facility. Which is where big brother goes to find out where u been