I am not really sure. Maybe it's because I call the COARSE location to be more privacy preserving instead of the GPS one. 🤔
I thought the GPS data would be converted to coarse data if I call it, but maybe that doesn't happen on AOSP.
Discussion
I'm not using AOSP. I'm running full Google Android, like the phone comes from the factory.
Which might have the same behavior as AOSP, which is also a valid interpretation of the "stock Android" you originally mentioned
hum... That is weird. It should work on Google's version. That's where I do most of my testing... I will try some other settings to see if the app is missing a permission or something.