No, actually, you haven't. Most of that money was spent in the USA or by the US military in Europe. 20% was loans, not grants. Some it was promised, but not yet sent, as it can take years for contracts to clear. They've received more like $75 billion, directly to the Ukraine government.

Anything "associated with Ukraine" gets paid from that budget line item, but the Ukrainian government never sees most of it. But they _have_ received weapons and recon, which have been game-changers, so they don't usually complain.

It works like this:

Congress agrees to $50 billion in "military aid to Ukraine". The US Defense Department spends the money on developing a new weapons system, training troops on that system, producing the system, delivering the system to its arsenals. It makes room for that system by removing the older stuff, that was scheduled for decommision. It sends the older stuff to Ukraine.

The older stuff, that it would have had to pay to dispose of, gets sent to Ukraine. Same thing Germany did. Sent them everything they wanted to get rid of.