It was possible to make transfers to the military support account for about two weeks after war started; then it was blocked.

Transfers to other accounts were still possible.

Amount of theft from “military” accounts in Ukraine is staggering, if anyone would ever be interested to figure out. Everyone know that except people blindfolded by the world “military” and deluded to think money there would be used on anything else but beneficiaries whims.

Supporting evidence, please. So far you've made claims only - "everyone knows".

Kyiv Independent, who are pretty good at this and are on the spot, do not report large scale or significant military corruption. They have found and report on pretty corruption (individuals selling personal weapons). I note EU and US are very interested in keeping track of where the money is going.