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Everybody I talked to online and offline, all the discussions I saw, dismissed the idea of Russia actually invading as impossible, since "Putin would never do something this stupid, it's just posturing like every other time".The Russians had, and continue to have, a very strong presence in online communities aimed at shaping consensus, disrupting community, and obfuscating efforts. it is plainly active here on HN, on Reddit, and on Twitter -- often quite blatently. "hypernormialization" and all that. there was a concerted push prior to invasion across all platforms of "Russia would never do this".
China, NK, Iran, are also very active in this game, though often more focused on specific areas. India, Europe, and even Brazil have also dipped toes in aggressive online efforts, though mostly focused on very specific things, like stymming the flow of Indian ex-pats to Canada (and killing Canadian-Indian activists...), or consensus shaping around Brexit.