> I can't see how the model could include the actual subjective human experience.

People who say LLMs have subjective experience aren't saying they have human-type subjective experience. Nobody who sees an LLM express hunger when role playing as a hungry person thinks that the LLM is actually hungry.

I too can role play as a hungry person despite not being hungry, so there is no reason in either case to conclude that the words produced reflect genuine internal subjective states. The point is that such internal states may still exist.