Unfortunately, no, they are not mostly in place where russia controls, because russia is closing Ukrainian-language schools across Ukraine, in addition to russia :( When you do eventually find the percentage, you will find it is very low compared to russian-speaking schools, because russia considers Ukrainians non-humans :(

You seem to be saying that this is bad when Ukraine does it, but good when russia does it. I don't understand this logic. Maybe you aren't saying so, and you ignored my "good or bad" question by accident. If so, here is where you can answer: good or bad that russia is closing Ukrainian language schools in not only russia, but Ukraine as well?