DeletedUser24
The same app installed on GrapheneOS and on Android, works on Android and does not work on GrapheneOS, unless I turn off "Use precise location".
GrapheneOS is at the least a contributing factor. Although I expect the real issue is the DQ app is doing something odd or "assuming of permissions" that fails under GOS' tighter security/privacy. The McDonald's app, installed in the same manner, does work on GOS (as a reference data point). Which is why I've raised this with DQ.
My goal in posting here is to help others encountering the same issue.
I am specifically not asking GrapheneOS to do anything.