Truth is the first casualty of war.
These stories have been going on since April of last year.
https://www.newsweek.com/russian-army-days-away-running-out-...
Each side is basically creating an echo chamber for their citizens to believe, so they will keep supporting an ongoing war until “the other side” is “100% defeated” so it “can’t attack us again”.
I have seen this rhetoric in every proxy war, including Yemen since 2014 and Syria even before that. Sadly the same thing repeats in every conflict but most people don’t know that.