Facebook-owner Meta said that a temporary change in its content policy, only for Ukraine, was needed to let users voice opposition to Russia's attack, as Russia opened a criminal case after the company said it would allow posts such as "death to the Russian invaders."

source https://gadgets360.com/social-networking/news/facebook-meta-instagram-russia-ukraine-block-ban-post-violence-army-nick-clegg-2818617#rss-gadgets-all