This information can be deducted. It's an easy job for a former intelligence officer. For example, in my battalion no one knows English language except me, so any intelligence in English language must be translated and reviewed first by a native Ukrainian. Together with time shift and night time, this creates 12-18 hour lag.

Moreover, Ukrainians know Russian tactics, language, technical capabilities, or even know them in person. We also have relatives in RF, which can text us when rockets are launched, for example.

USA intelligence is not important at this stage of war, when everything changes every few hours.