How are Iranian drones getting their guidance?
You would think the military would be able to remotely deactivate them, no?
GNSS is also cheap, precise and difficult (although possible) to jam. It's probably the preferred guidance on strike drones operating outside the regular theater, where GPS are less denied.
Jamming GPS can be done, but the problem is that the strikes are so sparse that widespread jamming of GPS does more harm to friendlies than good against drones.