The entire interior needs to be taken apart to determine if all the mold was removed.
If mold was growing on the surface of the door panels, then mold could still be growing on the back-side of those dooe panels. There’s probably some mold in the vent system. The seats/headliner may still have mold growing growing in them.
Was there also mold growing in the trunk? If so, that will also have to be taken apart to see if there’s any mold growing.
Tester