Pretty sure Russia “kidnaps” (conscripts) a hell of alot more than Ukraine does.

Russia does have conscription which is totally immoral and wrong as well, but it does not kidnap people into army (or at least does not do that on a scale nearly close to Ukraine).
Ukraine literally does kidnapping (catching people on the streets, running after them and using force to put them into vans/etc. Some people manage to self-defend with pepper-sprays, or outrun them or sometimes got protected by a crowd of people, but those are the lucky ones).
Source: uadraftmuseum.ch, and if you search comments on this post you'll see another guy posting a link to nytimes (a western media!) talking about the same, but it is paywalled and I cannot read it so I won't repost it.

Russia also beating Ukrainians in the occupied territories

Yes. Note how I never said that Russia are the good guys. There are no good guys, everybody commits warcrimes (Including Ukraine, USA, and all the other countries that are currently considered good guys by the mainstream media). I am just saying that people in Russia (including Ukrainians on occupied territories) have unimaginably more freedom than people in Ukraine.

forcing them to become Russian citizens

I included a source for my claims, surely you have a source for your claims? There was another article here on lemmy about nuclear power plant where "everything is going terrible right now, because only the intelligent Ukrainians know how to operate it, and they are not allowed to work on it because they have refused to accept Russian citizenship". So which one is it, are they forced to become Russian citizens or not?

either forcing them into fighting against their own country or ship them off to some labour camp never too be seen again.

Which is so much different from what Ukraine does, right? Or in case of Ukraine it's all alright because the west supports it, but in case of Russia it's barbaric?
Btw, any source on "ship them off to some labour camp never too be seen"? I suspect you might have confused history of USSR with current events.

Do you think they are “free” to leave Russia?

Literally, yes. Some of my family (but unfortunately not everyone, because lately escaping this west-supported mass-prison is almost impossible) managed to escape Ukraine by going to occupied territories, and from there to Russia itself, and then they just left Russia and went wherever they wanted. (Obviously nobody here would believe that I'm actually Ukrainian, because as we all know all Ukrainians are happy to die in the meat grinder while screaming "for the glory of Zelensky, my only master", and those who want their family and friends to stay alive are Russian bots, so you can replace "my family" with "many Ukrainians" if that will make it easier for you to read).
Do you have any sources claiming otherwise?