I gave guest access to a friend who's on Android. As we were checking he was able to unlock the door with the app, we noticed the app requesting Location permission. The pop-up specifically said this was to discover Sesames. We tried refusing the permission and he was able to unlock the door without issues.
However, the pop-up requesting the permission keeps coming back, which is very annoying considering a guest user doesn't really need it. Don't keep asking for this if it's not mandatory please.
Here is a screenshot of the request.