I find this whole chatter about dual gain ISO in Auto ISO mode quite amusing. DJI claim these outrageous dynamic range figures on their latest prosumer drones with QB sensors equaling or even exceeding the best professional video cameras such as...
A lens hood on an ultra wide lens (the case for all basic drones) doesn’t serve much purpose because an effective hood would interfere with the FOV. Try to shoot at more than 90 deg to the sun or directly into the sun.