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DragonFire: UK fires high-power laser at aerial targets for first time - with 'intense beam of light' able to cut through drones
(news.sky.com)
this post was submitted on 20 Jan 2024
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Sounds like it. A laser that can cut through metal and plastic at those distances is going to vaporise anything else that gets in its way. Normally you'd have an issue with the surface of the target ablating and vaporising into a dense cloud that does a much better job of stopping photons than the atmosphere (see some Styropyro videos for examples of this in action), but it sounds like it's strong enough to punch through that as well to finish the job. And quickly enough that it takes out an aerial target, which typically have to move pretty fast to stay airborne. There's power behind that beam.
Drones don't necessarily move that fast, I can't imagine this would be all that effective against fast moving targets that vary their speed. So it might catch a drone hovering, but it probably won't catch a 200mph racing drone going through its paces.