It's already been happening for a very long time. The US' "Operation Earnest Voice" happened in 2010/2011[0]

And it's not just state actors. Anyone who was online during the Amber Heard/Johnny Depp trials was likely inundated with media about that trial. Both of their legal teams utilized bots to drive online discussions[1][2]

[0] https://en.wikipedia.org/wiki/Operation_Earnest_Voice

[1] https://www.latimes.com/entertainment-arts/story/2022-07-19/...

[2] https://www.tortoisemedia.com/2024/02/26/depp-v-heard-who-tr...