The Russian Defense Ministry has published videos of “successful strikes” on the Ukrainian Armed Forces in the Kursk region. These videos were filmed in July in Ukraine
Thus, the state agency RIA Novosti, citing the Ministry of Defense, published a video of how “Russian Mi-28NM helicopters launched S-13 air strikes on Ukrainian Armed Forces personnel and armored vehicles in the border area of the Kursk Region.” As The Insider writes, the video was actually filmed in Kremennaya and Chasovy Yar — the publication publishes the coordinates of where it was filmed.
On August 9, the Defense Ministry published another video showing a supersonic Su-34 fighter-bomber hitting a FAB-3000 air bomb “in one of the districts of Sumy Oblast bordering Kursk Oblast.” However, the same video was posted by the state agency TASS on July 14.
Russian propaganda doctrine is about attacking the very concept of truth itself -- they want people to think "I can't know what's true", so that they disengage politically and leave the ruling to the ruling class.