Sure... let's theorize on concepts of peace keeping froces by European countries. As if that was relevant because Russia had any interest in stopping...
Putin does want peace. He wants his peace though, which is unacceptable for Ukraine and (I hope!) most people in the EU.
Depicting the issue of how this conflict should be resolved as a binary "peace" vs "war" choice (as some do both among those who support Ukraine and those who'd like to seem them capitulate) is of no use.
Trump is Putins puppet and he tries to bring Ukraine to give Russia land, in exchange for ending the war. So yes Russia wants peace. The problem is that Russia has shown that peace with them so far, just meant a longer ceasefire. Hence peace keeping forces.