What we saw was the first export version for the West. Authoritarian regimes have been honing many of the same propaganda techniques on their own populations for some time.
See:
https://en.wikipedia.org/wiki/Internet_Research_Agency (they were involved in the 2016 election interference, but they've long been doing similar in Russia and Eastern Europe).
https://en.wikipedia.org/wiki/50_Cent_Party (Chinese equivalent)
I think it's important for Westerns to study the details of these propaganda programs, so we can recognize and respond to the export versions.
More links:
https://www.rand.org/pubs/perspectives/PE198.html
https://www.nytimes.com/2016/05/20/business/international/ch...
https://chinadigitaltimes.net/2011/06/future-banned-on-sina-...
https://www.buzzfeed.com/maxseddon/documents-show-how-russia... (from 2014!)