If home point Is reset, say to drone location do the AGL and distance limits begin to be tracked from that point? A flying drone could easily get a much higher RTH altitude in such an event. Also, would be nice if home point could track a moving controller.
If you reset the homepoint, the new homepoint is the ground below the drone. Your distance changes to the new homepoint (so should be 0 in your example - although not sure I ever checked that. I did see it change when using the map). Altitude is displayed as AGL above the original takeoff point, as the drone doesn't know where the ground is below it.
Some of the previous DJI drones did have dynamic home point where you could set it to always be where the controller was. That seems to be a feature they are no longer using, as none of the newest consumer drones have it.