They use flying drones all the time, you can see them flying around in the Starbase live streams. I can't think of anything off the top of my head that a flying drone can't do but spot would be able to do at Starbase. Unless Spot can crawl into a pipe or tank maybe.
Anything that involves adding weight to the robot (e.g. carrying something from point A to point B) seems like something more suited for Spot than a camera drone.
[1]:https://youtu.be/aajbFO7xwBM?t=36