Honestly, this looks like a some kind of a training exercise, probably a contractor working with the DOD or another acronym agency. From the videos, they're definitely quadcopter drones, definitely larger than most hobby drones (and def above the size you need to file a flight plan with the FAA). What's puzzling to me is that they run with all lights on, at night -- as if being seen was a goal.

I imagine part of a training exercise could be to learn how local authorities respond to such aircraft activity. If you see what the Ukrainians have been able to accomplish using this type of tech (with a lot of cottage-industry DIY-type contributions) in an active theatre of war, it should give you pause.