Which OT? in the George Canon the original versions of the OT aren’t canon. Yet to me the most valid version is Star Wars, not Episode IV, the original Empire and original Jedi. The prequels the elements which aren’t discordant with the original SAGA or break canon i can view as a expanded universe material. The sequels are Disney’s replacement for the EU. But somehow to me even less canon, almost infinities.
Of course i refer to the Original theatrical versions of the OT not the Special Editions