I’m fully aware of the difference. The only parallel I’ve drawn is the fact that it uses gases as a result of the combustion as propulsion rather than spinning

I’m fully aware of the difference. The only parallel I’ve drawn is the fact that it uses gases as a result of the combustion as propulsion rather than spinning a fan. Whether it has its own oxidizer is irrelevant for the purposes of this analogy as I don’t see this vehicle achieving any sort of space flight.