A ceasfire is not an armistice or the end of a war. It is a pause in fighting, and allows both sides to rest, recover and re-arm in case no peace treaty comes about.
Russia is interested in peace only if it means ultimately the end of Ukraine's identity and sovereignty. President Putin has never made that a secret, expect perhaps to Russian citizens led to believe his lie about a "special military operation" to remove the Ukraine's supposedly-Nazi government. (An elected government and president; and he of Jewish descent.) Even calling it a "war" is highly illegal in Russia, unless perhaps you put all the blame on Ukraine, as Putin does.
Even if he could use that excuse, Putin still flouted all international laws and the treaty between Ukraine, Russia, UK and the USA that guarantees Ukaine's independence in return for Ukraine surrendering a nuclear arsenal that was Russia's anyway (ex-USSR).
Trust Trump's judgment? Donald Trump, assisted by James Vance and Peter Hegseth, genuinely want the fighting to stop but has switched from supporting Ukraine to supporting Putin's Russia.
It is not as if the USA has decided to be neutral. Far from it. Trump has turned to openly supporting Vladimir Putin even to the UN. He has stated wanting Ukraine's minerals (hedging his bets so if Russia eventually wins he can still take them). That's when not urging evicting the Palestinians from the Gaza area of Palestine, and taking over the Panama Canal and Greenland - even hinting at using military force, against international law never mind morality.
.........
(Gaza? Trump has publicly claimed wanting it becoming an exclusive holiday-spot for the rich. Though he might not benefit personally, he's likely thinking most of the developers, operators and visitors would be Israelis and Americans. And Russian oligarchs....?
Panama? Fear or jealousy of China operating ports near it. He seems to think the Canal is an American military channel now Chinese operated. It is neither. It is Panamanian owned and operated for all shipping. He has never made his claim a secret.
Greenland? Vying with Russia and China for mineral deposits and Arctic sea-routes opened by climate-change. He has been more secretive here, but first revealed this expansionist aim eight years ago, in his first go at being the President of the USA.)
