https://www.theguardian.com/technology/2022/mar/31/facebook-disinformation-war-ukraine-russia

A study found that external articles shared on the bioweapons myth were not labeled as ‘false information’ or ‘missing context’

As social media companies promise to crack down on Russian disinformation about the war in Ukraine, studies show they continue to fall short, allowing disproven narratives to reach millions.