Is Darth Vader an obscure figure in the Star Wars galaxy? In the old EU he was portrayed as famous, a well-known second in command to the Emperor.

In the Kenobi show, Obi-Wan does not know that Anakin/Vader lived until ten years later when Reva mentions his name. You’d think that would be hard to miss, even if he was spending most of his time getting stoned off his ass on Tatooine.

Also, in ANH Luke does not appear to recognize the name Darth Vader when Obi-Wan names him. Is Vader meant to be a little-known figure outside the Empire’s military hierarchy?