Come on, Zelensky is hardly a shrinking violet. He's not going to just roll over for Trump. (now, it actually sounds like any deal is off). That having been said Trump, is a genius at using leverage, and if he uses that leverage to end the war, more power to him. It benefits both Ukraine and Russian citizens.
Let's be perfectly honest, the US doesn't really give a shit about Ukraine. We only give a shit about stopping Russia. If Belarus got into a war with Ukraine we'd likely just sit on the sidelines. Ukraine is a highly corrupt country and is hardly a shining light of Democracy.
The war is at stalemate, and has been for a long time. The only thing that is going to change is the number of deaths. Even if Russia were to gain a little bit of territory in a settlement, Russia has effectively badly lost the war. Its military has been decimated and its economy seriously damaged. Estimates are that Russia has had 800,000 killed or severely wounded versus 80,000 for Ukraine. Claims of appeasement are comical (actually just TDS) if you end a war started by Russia without Russia even coming close to achieving their goal.
I was being facetious about Zelensky being a dictator, that was a response to your implication that Zelensky would sell out his country.