Thank you for that question.
The government's approach is multipronged. On the one hand, there has been an active effort to block platforms that provide people with access to alternative or countervailing forms of information that would challenge the government's narratives as well as its lexicon. That means that prominent platforms such as Facebook have been formally blocked within Russia, although they are still accessible for those who have access to VPNs. That's a loophole that may be closing at some point.
The goal has been to drive people to state-sponsored or state-controlled media, including social media. These are not just the major broadcast media but also organizations like VKontakte, which is the Russian version of Facebook, which are very much under the control of state managers.
The other approach is a common tactic in all disinformation campaigns, which is to sow the airwaves and social media channels with multiple and sometimes contradictory narratives. The idea here is not necessarily to persuade anybody of any particular narrative, but rather to generate a distrust in all potential narratives. It's to drive people away from the search for information and confirmation and to generally create the likelihood that it is impossible to find the truth, so people shouldn't bother.
In this regard, disinformation succeeds insofar as it reinforces the ambivalence of people towards the war and makes them feel powerless to do anything about it.