I think directed energy weapons are being used. I have zero evidence.
Food processing plants in America catching fire.
Russian Military chemical and ammunition plants catching fire.
Wild fires in Russia.
Unless you capture the beam signature in a satellite image, there would be little evidence, just a fire.
The Ukies have satellites in orbit that can shoot Flash Gordon style space beams down on Russkie installations. And blow them to Kingdom Come.
The Ukies might renting these beam satellites from the Chinese, or they own them and had Elon Musk send them into orbit. They come with 10 acre photovoltaic sails. They feed the capacitor on board that takes 3 days to charge up for space beam operation.