It does happen. It does not happen directly at the hand of state actors, but usually by way of proxies. This is something that is fairly commonly done, especially on social media. You have cut-out accounts—people who advance the Russian state's narratives—and they will specifically aim to attack those who are, for instance, promoting anti-war messages, or derail and drive away what might otherwise be productive social conversations about these kinds of issues.
On April 7th, 2022. See this statement in context.