> Just as a disclaimer, I do question the 70% stat. I don’t know where that comes from or if such a number can even be reliably acquired given the censorship that’s going on in Russia.

This number comes up regularly and is an average, with the actual numbers varying from 50% to over 80% depending mostly on age. See for example The Economist: https://www.economist.com/briefing/2022/07/28/vladimir-putin... :

"Among television viewers—mostly people over 60—more than 80% support the war. Among 18- to 24-year-olds, who get their news from the internet, it is less than half."