I'm honestly a bit surprised that some kind of net that can be shot from an under-barrel mounted grenade launcher hasn't been developed/deployed yet. I'm imagining something like a standard 40 mm grenade casing that contains a net that folds out after maybe 50 m (or a programmable distance, or a proximity trigger). Very thin/light strings are enough to take down a drone, so you could probably easily pack a 5 x 5 m or even 10 x 10 m net into a 40 mm casing. People are already shooting at drones with rifles, I would imagine something that lets you shoot out a large net to 100 + meters would make taking down drones a lot easier for an infantryman, and being able to fire it from a standard barrel-mounted grenade launcher would make it very easy to deploy.

I would imagine that this kind of thing could drastically improve the ability of infantry to deal with drones when they are exposed. I'm sure there's a good reason this hasn't been implemented, but I have a hard time figuring out what that reason is.