Meanwhile Russia is famously more corrupt than Ukraine, has been since long before Maidan

That’s a lie.
https://en.wikipedia.org/wiki/Corruption_Perceptions_Index
2020-2023 - Russia is more corrupt
2012-2019 - more or less the same, sometimes Russia wins sometimes Ukraine
1995-2012 - Ukraine is more corrupt

attempted to pervert Ukraine’s elections to install a corrupt leader under their control

Are you talking about 2010 elections?

After the second round of the election international observers and the OSCE called the election transparent and honest

source: https://en.wikipedia.org/wiki/2010_Ukrainian_presidential_election#International_observers
You’re either lying again, or using the typical western-liberal “it’s only democracy if our candidate winds” (or, well, both).

Nice disinformation bro