There's no way the Ukrainians are going to accept this; they're giving them nothing but time here:
nypost.com - Heres what russia and ukraine get in trumps final offer peace deal

What Russia gets
Formal US recognition of Ukraine’s Crimea peninsula as Russian territory — a major departure from Washington’s longstanding Welles doctrine, which refuses to acknowledge annexed territory as belonging to the seizing power.
“De facto” recognition of Russia’s occupation of four regions in eastern Ukraine, meaning the US would acknowledge Moscow controls the Luhansk, Donetsk, Kherson and Zaporizhzhia oblasts while formally considering them Ukrainian land.
A pledge that the US would not support Ukraine becoming a member of NATO.
Lifting sanctions to boost Russia’s economy, which has struggled throughout its war on Ukraine.
Opportunities for more economic cooperation with the US, especially in the energy and industrial fields.

What Ukraine gets
Assistance from European military forces as “a robust security guarantee” following a cease-fire. The US would not be involved in this measure.
Russia would return a small portion of Ukraine’s Kharkiv oblast currently occupied by Moscow.
Navigation rights in the Dnieper River, which runs along the front lines.
Assistance in post-war rebuilding, though it is unclear from where that funding would come.

The Ukrainian response is here
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Notably missing from the US framework is the return of the hostages the Russkies are holding.

Realistically, the Russians aren't giving back the Crimea. Why the opening bid isn't a return to pre-war borders is not clear either.