Navy's ONR Laser Weapon Systems (LaWS) were shooting down UAVs 3.2 km away with 6 combined 5.5 kW laser beams already in 2020 tests (public in 2021).

LM had a 60-120 kW laser for US Army in 2017. Dynetics built another one for US Army at 100kW power. GE did 150 kW in 2015 demo, 250 kW in 2020.

And 2021 ONR had already come out publicly saying they were developing DEW LASER/MASER platforms in the MW range.

DEWs are real, have been under development for decades, have been field tested and issue is powering/mounting/targeting them. That's why if you are looking for sources of fires, look for a research facility with huge power feed and permanent mounting (like Directed Energy Weapon research facility on Maui).

Ref: https://idstch.com/geopolitics/militaries-race-to-develop-high-power-and-efficient-fiber-lasers-for-deploying-laser-directed-energy-weapons-on-trucks-warships-and-airplanes/