The concept of "reality", of a physical universe, of a "you", of order and pattern, of an persistent objective reality outside of you, do not exist per se, but as simulation and models in your mind that you accrued throughout your life.
To be more specific, there is an underlying reality that is neither "objective" nor "subjective", but from which both of these realities emerge once a conscious being appears in it. We cannot directly know the true nature of this underlying reality, as it cannot be directly experienced. What we call objective reality is really the experience of the simulation in our mind synthesized from sensory data, as well as our model of this simulation (science), and not the underlying "true" reality.
From my understanding of the term, the "real" reality would be the same as the objective realm per definition;
What do you mean when you say "objective" as in "... the subjective or the objective realms"? Some sort of shared definition? If so, wouldn't this also be subjective to a certain degree?
I might just be post-hoc rationalizing my own interpretations here, but doesn't our subjective experiences of reality being based on our sensory organs' interpretation of stimuli from what is presumably the objective reality make fewer assumptions than a concept involving interconnected or "symbiotic" realities?
I would think the objective reality in your explanation would be what your sensory organs are reacting to, not what you perceive.