Propaganda comes from both sides, as it does in all wars. WW2 propaganda was very heavy, by all involved, not kosher but just part of the game.
However, accounts seem to point toward a much demoralized Russian invasion force, so the possibility exists.
In any case all will eventually 'come out in the wash'..
One splendid example was in the early hours of the bombing of Saddam's Iraq. One multi story
building that was bombed, was claimed by the US to have been a military operations center.
..But pictures emerged from Saddam's sources, showing that same building, with an oversized sign in English, saying "BABY MILK FACTORY".
A couple things came to mind..1) why would a "baby milk factory" require several stories in height?
and 2) Why would a factory have it's business function up in large letters...and in English at that ?