Sorry, but you can't trust the surveys conveyed under the auspices of kleptocratic military regime.
Disclaimer incoming. I abhor Putin, though I understand, too, that he, like Trump, is but a galleon figurehead of the historical tendency, which could or couldn't have reached the current levels of the Cold War reenactment without his private fixation on some aims. A floating, empty signifier, but, undeniably, it was his hand that rocked the cradle to full swing.
However, Zelensky, Biden, Blinken etc. share their part of responsibility for the genocide these pied pipers, taken in collection, effectively helped to unleash unto Ukrainian population. The most interesting moment comes when survivors come back from the frontlines of Ukraine and begin to ask whether the same ceasefire conditions, or much better ones, could be achieved three years ago without additional bloodbath, press-gangers running loose, and destruction of the heavy industry or the power grid. Zelensky's approval rating will plummet even lower than 4 %, this is for sure. ;) Hadn’t we seen it before, in another time and place?