It's been a while since we've looked at the polling from the Kyiv Institute of Sociology (KISS)

Their most recent polling shows what concerns Ukrainians the most is corruption in government (50%), followed by missile & drone strikes (40%), with the situation at the front (21%).

Also in this same investigation it found 72% of Ukrainians believe corruption has got worse during the war, and 72% say that Zelensky bears responsibility for this.

https://www.kiis.com.ua/?lang=eng&cat=reports&id=1636&page=1