> The force doesn't push against the nozzle of the engine.
I’m not sure what you are saying here. The force pushes against the nozzle, (and of course the walls of the combustion chamber.) That is the purpose of the rocket engine, to push the rocket forward. They are not just there to provide mood-lights.
Same force, not same pressure. The nozzles are relatively small.
I wouldn't want to try to intuit what the force distribution would be and how much is carried through each component of the structure, though — that's what simulations are for.
The force doesn't push against the nozzle of the engine.