Here my two cents as someone that has visited, lived in, or good friends in authoritarian regimes such as East Germany, Russia, North Korea, Iran, Hong Kong: - in a democracy, the population is responsible for what the government does. Conversely, the more authoritarian the regime, arguably the less culpable the population is. (Of course, people shouldn't have allowed an authoritarian figure to gain power... indeed.…
All the reporting from (non-kremlin) sources that I've seen say that Putin is quite popular with the average Russian: https://theconversation.com/putins-public-approval-is-soarin... .
Still not sure that changes in attitude will come about by making life more miserable for ordinary Russians; and even if the majority disapproves of Putin, there is not much they can do about it [2].
[1] https://www.levada.ru/en/ratings/
[2] https://www.nytimes.com/2022/02/23/world/europe/russia-ukrai...
> And yet there is desperately little that Russians can do to change their country’s trajectory.