At this point I bet Ukraine wishes it had never given up the nuclear weapons to Russia to secure an agreement that Russia would never invade and that along with the US they would take "keen interest" in the war should any other nation invade their borders.
Ukraine already knows that Russia lies, will not keep a promise, and wants their territory. As long as Vladimir Putin is in control of Russia this would be a very temporary agreement, he's stated the goal of regaining the satellite states of the USSR as part of Russian territory... I don't think he'll be giving up on that.
Biden allowing them to put in that fricking pipeline (Nord Stream 2) allowing them to have 2 pipelines that would circumvent Ukraine to get oil to Europe, this was the basic catalyst for this war. Blowing them up didn't resolve it, unfortunately, because it was already ongoing.