Death to NATO

It sucks for all directly affected, on the territory and families of all who died both sides of the fence, that aspect is absolutely horrible and undeniable. But on a international chess game perspective there are some things to consider. Like US loosing this battle is a big blow to their grandstanding as the one who does stuff and is never wrong. For that they are doubling down on anti Russia propaganda to try to gather some European support to save face there, but for what it seems Ukraine is finished and there is no more saving that. What they might do is either strike back in a move of despair or instigate the fight somewhere else (possibly Taiwan) to try to sweep the defeat under the rug and pretend it never happens.

I think the side of Putin is more reasonable in this war but I have no love for the figure, he has plenty of skeletons in his closet. Just wanted to that stated.

So TLDR it sucks but sometimes it sucks for the US too, which is nice for the world

It's going horrible for the proletariat like usual

Nothing is changing appreciably from any Marxist point of view. Before and after the war, all belligerent states will be as in the same situation. However, without even being optimistic you can at least see some furthering of history in that the unipolar moment and the domination of western capital is over and we now have it counterbalanced with a strong anti-imperialist alliance of multiple states dominated by socialist China. If the war had gone in favour of the west we'd be looking at another few decades of stagnant barbaric misery.

China's success and example to the developing world will continue to inspire.

I hope someone can answer this but i fear that it is very difficult if not impossible to get any kind of accurate information of the sort you are asking out of a fascist police state like current Ukraine. People literally get imprisoned for writing the wrong thing online or having the wrong kind of app installed on their phone that can get them branded as collaborationists. As such it is very unsafe to express how they honestly feel about the war.

This is an extremely paranoid and insecure regime that is getting increasingly violent toward its own people as it loses more and more on the front line and desperately searches for more bodies to throw into the grinder. Paramilitary Nazi organizations that are too ideologically valuable for the regime to lose at the front have taken the functions of internal police, press gangs and punitive detachments.

Any organization of the proletariat right now in Ukraine is deep underground operating in small cells. We occasionally get wind of partisans hitting objects behind the Kiev regime's lines, torching this or that small objective, rumors that they occasionally give the Russians targeting info, etc. but news of any such incidents is highly suppressed by the Kiev regime. They have gotten very good at quickly finding people who post any footage not approved by the regime, and the punishments are extreme.