Testable proposition. Conduct hundreds of paired attacks at once one discussed on signal and one on telegram.

To provide fake info and see if the Russia reacts?

That would be better than the alternative which would be to only discuss real ones and see which suffer higher losses. You would have to A/B balance out because it would soon become apparent which "side" was under test otherwise.

Understandable. But it requires some smartphone farm on the frontline because Russians already knows both phone numbers which may appear there and phone numbers related to tg accounts.