https://www.theguardian.com/technology/2023/aug/19/blocking-feature-to-be-removed-from-former-twitter-platform-x-says-musk

Loss of protective feature may bring it into conflict with safety guidelines on App Store and Google Play

Social media company X, formerly known as Twitter, will remove a protective feature that lets users block other accounts, Elon Musk has said in another controversial move for the company he bought last year.