Both Ukraine and Russia could recognise territory that they legally claim but do not control as "temporarily occupied" to make a deal go through, similar to how Germany was split after WW2.
Russia legally claims the four oblasts though no? After the referendum they were legally added to Russian territory by the Duma (parliament) and such measures signed by Putin. They are legally (in Russia's eyes) part of Russia. Russian spox have repeatedly underlined this fact for years now in various press statements. Those people in those territories have political rights including voting in Russia now AFAIK.
Piefed only took off because people were furious at communists running lemmy. That's why I downvote all piefed shills (and there are a lot of them and it's obvious astroturfed, artificial and boosted by people pushing it for ideological reasons). For example there's a movies community on lemmy.world, someone has been spamming every post on there with "post this on and join the piefed version instead, there are more people" which doesn't make sense given its newer.
I never liked them or the kbin/mbin people. I just don't think there's enough room in this "reddit-like" discussion fediverse site space for multiple contenders and I want lemmy to win, not per se because the founders are of a similar ideology but because they don't censor ours. If lemmy's devs were libs but absolutely deranged genuine free speech types who didn't want to defederate from communists I'd be fine with people like that as well. But not corporate backed shills, not people who weep and sob about "Russian disinformation psyops" despite Russiagate being blown open as we speak as a partisan hitjob. And not people who want to wall off anyone with another opinion on China. So in that vein I feel any competitors are sucking limited oxygen including donation funds out of the space. The fediverse may be diverse with things like mastodon being a twitter-clone but there needs to be some centralization to get a stable version of each type of fediverse thing including I think of the discussion-board type, reddit/digg type site.