I actually had an idea for the exchange between Darth Vader and Ben Kenobi before their duel to be more consistent with the prequels. It would start with Ben saying “Anakin…” (almost like a last ditch effort to reach him), only for Vader to immediately respond with “Anakin Skywalker was weak. I destroyed him.” (from Rebels) and then Vader makes his first strike (I’m using SC 38 reimagined for my edit so it will be Vader making the first strike, as it should be IMO).

I think it fits better as “When I left you, I was but the learner” implies he was still Obi-Wan’s student, when in Revenge of the Sith he is no longer Obi-Wan’s Padawan, rather a Jedi Knight in his own right.

Not sure if the Kenobi show will render my idea weird or not though since the two will be meeting again in that show.