What I’m about to say might sound like a joke, but I’m serious.
If they will ever make an official “What if” animated episode (or movie) where Anakin doesn’t fall to the Dark Side and manages to live a happy life with Padmé, THAT will become the Canon version in my head. I will ignore Revenge of the Sith and subsequent works forever. Period.
I don’t know if this is an unpopular opinion, though…
I thought something like this a little while ago, back when everyone was getting hyped about Ewan McGregor and Hayden Christensen returning for Disney+ shows, and while all the comic book movies were jumping into multiverse stories. Instead of doing all these little piecemeal bits and announcing and canceling a dozen movies and putting out shows with a lower budget than they should have, they could have struck while the iron was hot and made an alternate universe movie like you’re talking about. Specifically that scenario, where Anakin stays good and they have to go on another adventure. It would have made a lot of money and been very popular.