Russian sources have been trying to create a misinformation about the invasion. The Russian Ministry of Defense recently claimed that U.S.-backed labs in Ukraine have been developing bioweapons. Tucker Carlson gave it credence by saying that the U.S. government had a cover-up.
The flow of misinformation will intensify as the war between Russia and Ukraine continues. Russia has a long history of using this strategy, and has borrowed a lot from other countries. The Russian strategy is reminiscent of the tobacco industry's strategy of sowing doubt about what is true in order to cause people to stop making decisions. People don't do anything because they don't know what is right.