I think there is a lot of fault to go around in this situation. The US absolutely handled this poorly. We should not have been making noise about Ukraine possibly joining NATO. The Biden should not have given Putin the green light to invade, as long as it's not "too big of an incursion." WTH.
Ukraine has surprised everyone with how bravely they've fought, and how they've pulled Putin's pants down in front of the entire world. The US has had a front row seat to study Russian tactics, logistics, communications, inventory, etc. But the last year as the war has settled into a bloody, expensive stalemate, they've taken a position that guaranteed further bloodshed without any real possibility of victory. I'm not sure I understand that. Sure, Zelensky was getting a blank check from Biden, but Ukraine is running out of fighting age men. Then what? That's not a criticism of Ukraine's bravery, courage, etc., it's simply an objective third-party analysis. Ukraine needs to broker a deal that minimizes their losses (they've lost the Donbass (sp?) region, but I don't think getting that back is in the cards).
Russia is a big loser in this whole thing. Their military was feared previously, not so much any more. Their economy is hurting, they poor demographic condition has gotten even worse, and they'll continue their brain drain, as those young Russians that can leave will do so. Very sad. Putin wanted to "get the band back together", and it has backfired. He likely won't go off into the sunset. Rather, he will die in office, by health issues or getting killed by a political opponent (probably not soon). He's weakened, and there are those in Russia who might be interested in changing direction. Putin is looking over his shoulder 24/7.
Europe has lost, again. This conflict has created a rift in NATO, and it's been a clarifying rift. Europe has never liked the US, they think we're a bunch of rednecks. US has never liked Europe, we think they're a bunch of pussies. Maybe we're both correct. I don't know. But I do know that NATO has subsidized European welfare states by allowing them to move monies that otherwise would have been allocated to defense to social welfare programs. That seemed to work pretty well for 50 years, but such social welfare programs incentive bad demographics. No one is around to do the work, and those who are around would rather get benefits that do the hourly stuff. So Europe brought in the barbarians to do the work they weren't willing to do, and now they're realizing the social welfare state only works within a homogeneous culture which they no longer have.
The old world order (for better or worse) is no more. Without US keeping the peace, there will not be peace. But as long as we don't get involved, maybe we shouldn't care. Just as a fellow human being I do care, but mankind has been destroying each other for 10,000 years. Not much has changed, except that we're more efficient at it today.