Been there, the issue I encountered is that most other apps would rely on active GPS and drain battery with it. Also, not many apps can access the GPS without a prompt, at least on xiaomi I had that… Maybe it’s something to do with their OS customization… Anyway, Ideally you’d like to access in intervals and only wake GPS if other means (e.g. WLAN passive scan of surrounding SSIDs, like google services does) lack certain accuracy.