Most extensive/transformative edits of Rise of Skywalker?

My friend and I are pretty big fans of episodes 4-8, and were planning a rewatch of those films (we've seen all the shows/films before). Obviously the story begins in episode 4 w/o any need for backstory, but ending on 8 is a little vague.

I'm debating the Heavy Star Wars IX edit, but is there anything that is able to completely alter the story?