One forgotten line from Star Wars: The Force Awakens proves that Anakin Skywalker should have been vital to Star Wars: The Rise of Skywalker. While Hayden Christensen made a small voice cameo at the end of The Rise of Skywalker, his role could and should have been much more prominent given the character's importance to the Skywalker saga. With Anakin being pinned as the Chosen One of the Force since Star Wars: Episode I – The Phantom Menace and The Rise of Skywalker featuring the return of the disruptor of the Force's balance in Emperor Palpatine, Anakin Skywalker should have been more integral to the sequels.
https://screenrant.com/star-wars-force-awakens-rise-skywalker-anakin-kylo-ren/