Journalist who held anti-war poster on Russian state TV confirms she has abandoned house arrest
https://edition.cnn.com/europe/live-news/russia-ukraine-war-news-10-05-22/index.html
It seems to be still possible to publicly oppose war in Russia, though advocator will be punished. On the other hand, in Mainland China, I have never heard journalists who publicly criticize Chinese Communist Party. Even if someone just criticizes zero-Covid policy, he/she will be arrested.