Whether Ukraine tries to make peace with Russia or not, there’s no reason to believe that Russia won’t just keep attacking them.
In essence:
Ukraine tries to make peace with Russia = Russia attacks them
Ukraine continues to fight Russia = Russia attacks them
So you have to ask… does a temporary “peace” benefit Ukraine or russia more?
What does Ukraine benefit from a temporary peace? Very little. Russia would not allow them to seek exterior alliances, and would likely use rumors of such to predicate their next invasion, just like they did with all that shit they made up about NATO too invade the first (well, second) time. Russia likely also would not allow Ukraine to rebuild, and even if they did Russia’s subsequent attacks would likely focus on destroying those things anyway.
What does Russia have to gain from a temporary peace? Basically, everything, as we can expect them to break whatever truce is affected at their leisure. A temporary peace means russia can build up infrastructure to facilitate the next invasion, tighten up logistics, and prune the bad elements that made their initial invasion such a colossal train wreck. As it stands now, Russia can’t afford to attempt any of those things, as letting off the gas of purely throwing meat into the grinder to keep up the offensive means Ukraine could easily take the initiative and make major rebukes.
A temporary peace, done to Russia’s demands, to be broken at Russia’s discretion, only benefits one party, here. I’ll let you guess. And all the Ukrainians you’re shedding crocodile tears over who would have been “saved” by a temporary peace would only be killed by Russians quicker and more efficiently at a slightly later date.