The West should just adopt the same tactics for Russian social media channels (VK, Telegram, etc), regular civilian groups if the state does not want to resort to it. Feed Russia some of their own medicine.
You should look up regime change and color revolution. The US openly speaks about subverting and supplanting democratic governments in other countries if they don't align with their foreign policy goals. And they have done it many times.
What Russia is doing is despicable but "they learned it from watching US".
Color revolution = "What do you mean those countries don't want to be friends of Russia? Woke culture is out of control: you run a few thousand people over with tanks and they take it personally!"
I hope you're aware the West isn't just the US (or worse, that republicans are in control of the entire West), and neither are the information related to this leak just about the US.
You don't need highly skilled intelligence officers to pour disinformation into social media. The largest hurdle is the language barrier but aside from that it would be doable by people like you and me. The last decade or so really showed how easy it actually is, because there's just enough gullible useful idiots who buy into this shit, helping to spread it even further.
Hence why I suggested private groups. We've seen it successfully in Germany from the other side with groups like Reconquista Germanica, which completely changed German comment sections to the worse since the refugee crisis. People need to organize and pool their knowledge into their own networks to destabilize Russia.
“The West” would have to start giving a fuck what goes on in who-gives-a-fuck-istan to have that happen. The warfare is asymmetric because only one side has an open society anyone else is actually interested in. No one in “The West” outside of the CIA ever thinks about Russia when they aren’t putting their dick in the punchbowl.