Google Maps and Apple Maps refuse to offer a way for users to port their data from one platform to the other. So I did it ...

Google Maps is deleting location history soon. ... After receiving the notification, you will have about six months to save or transfer your Timeline data before it’s deleted.

Google deleted the Timeline data for many of its Maps users. If you had a backup enabled, you should be able to restore that data, but otherwise, it's likely lost forever.

Make sure to follow this Google Maps offline tutorial and you won't get lost off the grid. ... If you have a device with microSD card support, you can even transfer data to your SD card.

Google Maps navigation privacy. There’s no point blocking Google Maps from crowdsourcing your location data. You might be better off using a different navigation app, if you’re uncomfortable.

To check for backed-up Timeline data, open Maps and go to the Timeline section. There should be a cloud icon at the top with an arrow—if it's a cloud with a line through it, you're out of luck.