There should be unconditional surrender.
I would also bet that Russia wouldn't take territory (or very little) if Ukraine pledges to stay neutral and out of NATO.
The demand arose because the governments of the US and Ukraine are as phony and corrupt as a $3 bill.
Look to Biden and Zelensky for the blame. Their power and control play has cost many thousands of lives on both sides of the war.
Putin has said in no uncertain terms that the final objective is the obliteration of Ukraine; borders, language and culture. As his forces are already doing in the occupied Donbas and Crimea. Wake and smell the cultural genocide.