It's not just Russian political bots, but a good chunk of things you see on social platforms are driven entirely by offshore content farms - China, India, Philippines, etc. Not just the content - but the likes, shares, clicks, etc might all be generated in an attempt to "arbitrage" ad networks.
It's not just that platforms know about this, they are financially dependent on it - which makes it really easy for political agents to hide in the mess.
But if you want to claim you were being barraged by BLM up until several days ago but now nothing at all? I'm ... "skeptical".
I hope Ukraine eliminates Yandex entirely and at the same time cuts Russia off from the Internet. Not even the the 50 cent army is as bad.