One's state of consciousness is very much their subjective experience while conscious

Yes. But qualia, subjective experience, state of consciousness, phenomenal consciousness, etc. these are not good definitions (as asked by OP). These are just all talking about the same thing without a proper definition that would allow us to define its different states. Measure, quantify, understand, sort, etc etc.

https://en.wikipedia.org/wiki/Hard_problem_of_consciousness

	▲	gentooflux 6 days ago \| parent [-]
		That seems a bit like trying to put a number to how hungry you are. "Experiencing a desire or need for food" doesn't even begin to describe the sensation, but that doesn't mean it's not a real phenomenon that can't be induced or adjusted in a fairly predictable manner