Our users have often brought up the orientation of maps displayed in Indoors. The default north orientation isn't always intuitive for indoor maps, as people often expect it to orient to the front of the building. Users can manually rotate maps after loading, but this isn't always ideal, especially for users who are unfamiliar with the building (ex. visitors using a kiosk)
A potential solution: Add a field for "Rotation" (in degrees) to the Facilities feature class as a part of the default Indoors Information Model. Then, update the behavior of the Floor Filter (ArcGIS Pro, Online, Portal) to read the value in the "Rotation" field whenever the user selects a new Facility from the dropdown, and apply it to the map alongside the normal pan/zoom action that occurs. If there's no value in the Rotation field, it just defaults to the map's default orientation (likely north), ensuring the functionality remains optional. For routing directions and other multi-building actions, perhaps they could reapply a rotation action back to the map's default orientation.
While this Idea is similar to this one, it would apply to more than just the Kiosk/Viewer App—benefitting Space Planner users, users working in ArcGIS Pro, and potentially those using custom apps created with Experience Builder that have floor-aware data.