Dude there's tons of stuff being thrown out by both sides of the conflict right now. If you haven't seen anything pro-Russian you're in a very sheltered bubble.Just anecdotal but I'm yet to see pro Russia anything. They hyped up Ukraine and it's leader beyond belief.
The last two years I saw barely any anti vax stuff. Soon as it was posted, the poster was cancelled and ruined. Loads of pro vax and lockdown stuff.
All the lockdown and vax energy has shifted to pro Ukraine. Not pro Russia.
Are you nuts? Antivax stuff is all over social media. Are you trying to conflate social and mainstream media? Joe Rogan has more viewers than any of the talking heads on CNN. Conservative content is the most engaged with on Twitter.