Having spent hundreds of dollars on glass tripods and other camera accessories for my iPhone, it's fair to say that I'm neck-deep in love with iPhone photography. However, there are still some situations where pulling up my trust Sony RX100 III to capture a moment is a better choice. It's a wonderful camera, but it lacks GPS. To get around this issue, after taking a photo with my RX100, I often snap off a throwaway shot with my iPhone for the sake of capturing the location information. I've been doing it for years.
This video covers a bit of this, but it also goes a step further by illustrating how to batch import GPS coordinates for a single location into multiple images via Lightroom Classic. Unfortunately, I haven't figured out how to preform the trick described in the video using Lightroom for iOS or Android, but it works a treat with the desktop version of the app.