To insist that these physical states in a computer intrinsically have one true computational interpretation is already highly dubious.

To say that a process occurring in a computer is intrinsically about something, you not only have to pick just one of those physical-to-computational mappings as the one true computational description, but you also have to pick one possible computational-to-semantic mapping as the one true interpretation.

Right. The usual dodge is that all possible computational interpretations are simultaneously happening.