Personally I thought Hayden nailed the way Prowse used to move this time around. Felt very Vader-y, much more than Rogue One. Pair that up with the new voice and damn, it really is him.
Hate to tell you, but it’s BS about Hayden being Vader throughout Kenobi. There are three people in the suit on this show. Hayden only when unmasked, General acting scenes is Dmitrious Bistrevsky and for stunts and fight sequences it is Tom O’Connell
Dmitrious stated that he’s only Vader when they need full body shots to establish Vader’s height And O’Connell does the fights but that it’s all Hayden for any medium and close up shots for his performance.