Apple maps will actually suggest storing offline maps if an area you’ll be going through is known to have bad cell service. Not sure how they’re determining where there’s bad service.
That or tracking anonymous data from people’s phones. Hopefully if that’s it they go based on if the maps actually load instead of just bars because there’s plenty of places with good signal but unusable data due to congestion.
Apple maps will actually suggest storing offline maps if an area you’ll be going through is known to have bad cell service. Not sure how they’re determining where there’s bad service.
https://9to5mac.com/2023/08/24/ios-17-apple-maps-offline-maps-route-download/
Probably from carrier coverage maps
That or tracking anonymous data from people’s phones. Hopefully if that’s it they go based on if the maps actually load instead of just bars because there’s plenty of places with good signal but unusable data due to congestion.