@leeloo @Life_is @CoMaps Regardless of what you think about Mozilla,
Mozilla's network-based location service was used as the default in GeoClue including for GNOME, KDE and Pantheon (elementary OS) among others. It was also the main location service used in microG by non-GrapheneOS AOSP-based operating systems. We never used it for multiple reasons and decided to work towards building our own implementation with better privacy/usability matching iOS to start with and then full offline support.