While Russia is unlikely to occupy all of Ukraine, they’re certainly capable of demilitarizing Ukraine and putting in a Russia friendly government in charge of whatever remains of Ukraine in the end. Ultimately, the core motivation for the war was to keep NATO out of Ukraine. Stopping short of that would not solve the underlying problem.
While Russia is unlikely to occupy all of Ukraine, they’re certainly capable of demilitarizing Ukraine and putting in a Russia friendly government in charge of whatever remains of Ukraine in the end. Ultimately, the core motivation for the war was to keep NATO out of Ukraine. Stopping short of that would not solve the underlying problem.
I think that’s actually going to be pretty difficult. It would be a true triumph of counterintelligence to pull that off.