Not by the scale quoted in backstage sources. I'm aware that "Bloodlines" is inconsistent with it, though.
"Bloodlines" is our only real datapoint on warp 9. The problem with it is not that it would be inconsistent with some backstage musings that never were in any way involved in the defining of warp speeds (all
references to warp factors are inconsistent with all
backstage scales, save for two datapoints glimpsed on an Okudagram in ENT "First Flight" that happen to match the supposed TOS cubic scale), but that it suggests such a low speed compared to the known ability of TNG era starships to go from star system to star system within hours but without "risking" high warp factors.