I was thinking we weren't on the same wavelength here when you said you couldn't see any GPS files earlier. I'd be surprised if they aren't there. No, you won't find them on the phone app you just showed me. Sounds like you need to read the manual for both the camera and the phone app. You'll need to take the card out of the camera (read manual on how to safely shut down the camera first and then extract the card btw so you don't corrupt the card when removing). You'll then need to view it in your computer/laptop using the Blackvue Viewer app which if you haven't you'll need to download from the BV site. This app is different from the app on the phone. Since it's a microSDcard you will need to put the card into the card reader that came with your camera. Using the phone app is just for quick viewing of your videos.
However with the phone app you should be able to save a N or E video file to your Internal Memory on your phone app and see the GPS BV bird moving on the split screen as I illustrated in an above post.
If you haven't you should download the DR650s Camera manual from the BV website to one of your devices for future reference. The BV phone app manual is accessible already from the app itself. Click on the ladder (3 horizontal lines) at the top of the phone app to see the list of categories. The manual is under the Help section.