Russia had sanction preparation, good evidence includes building up a massive central bank reserves, testing a national wide 'cut the Internet' in 2016, forcing foreign big tech to operate under national security laws (which they mainly didn't and left).
However, I don't think Putin anticipated freezing central bank reserves (pretty much the metaphorical nuclear option), nor the massive voluntary disengagement of mainly Western private companies, which will likely cripple many sectors of the Russian manufacturing base, nor the German U-turn on Nordstream-2
OP second paragraph is prescient, severity of the sanctions, as well as their unilateral nature, will have every country's national security experts looking out how they can hedge in a world where at any moment you may fall foul of the US
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Russia had sanction preparation, good evidence includes building up a massive central bank reserves, testing a national wide 'cut the Internet' in 2016, forcing foreign big tech to operate under national security laws (which they mainly didn't and left).
However, I don't think Putin anticipated freezing central bank reserves (pretty much the metaphorical nuclear option), nor the massive voluntary disengagement of mainly Western private companies, which will likely cripple many sectors of the Russian manufacturing base, nor the German U-turn on Nordstream-2
OP second paragraph is prescient, severity of the sanctions, as well as their unilateral nature, will have every country's national security experts looking out how they can hedge in a world where at any moment you may fall foul of the US