Problem is, Russia is not making any progress in the field to be able to benefit from anything if the war stopped now. That is not proportional to the loss they suffered, setting aside the Russia would need to actually rebuild the occupied territories to begin with, that would make their own economic situation worse, it's already as bad as it is.
Ukraine on the other hand, have options. And one of them is going nuclear, read an article a couple of weeks ago, Ukraine is opened to restart their nuclear weapon development as a deterrent if NATO membership or nuclear deterrence from NATO cannot be had, and they would already have head start with their own nuclear power station. So Trump can't afford to actually push Ukraine too far without Russian progress in the field, it will bounce back.
And finally, unlike in Vietnam and Afghanistan, which Trump again negotiate peace with Taliban without the Afghan contribution, US boots was not present in Ukraine, and Ukraine largely been able to withstand Russian onslaught. And more importantly, Ukraine have the know how to build their own weapon, all the way up to Nuclear Weapon. The best Russia is looking at is to capture Donbas as a whole and trade off Kursk with partially occupied Kherson and Zaporizhzhia, that is the best they can hope for, and it's not going to happen within the next 15 to 20 years if we judge by the progress they were making in the last 3 years. So, even if Trump can make peace between Ukraine and Russia with Ukraine abandoning NATO dream, this is not going to change the dynamic because even if Russia can force a election (which is highly doubted) there are currently only 2 acceptable candidate, it's either Zelenskyy or form AFU commander in chief Zaluzhnyi, it's not going to be pro-Russia and chance of any Russian interference is very low because them being a hostile neighbor. This is not going to change in the decade or two, certainly not going to change when Trump done his term as President.