Actually, Zelenskyy has done a thorough job of eliminating anyone in the Ukraine who doesn’t agree with his policies.
All opposition parties are banned and the TV news is under government control.
https://news.yahoo.com/zelensky-nationalizes-tv-news-restricts-173820471.html
The police are arresting and confiscating the belongings of those accused of being sympathetic to Russia.
https://apnews.com/article/russia-ukraine-putin-europe-kharkiv-51c514b6dc9cc1f935e018e4877222cc
There is reportedly an actual hit list.
https://schillerinstitute.com/blog/2022/09/07/press-conference-shut-down-the-ukrainian-hit-list-targeting-americans-and-international-voices-of-opposition/
Neither side is snowy white.
Except only one country, Russia, illegally invaded another country
so no, the two countries are not similar