I was actually thinking about a Save The Reveal edit in relation to my own the other day! If you cut the last half of New Canon Cut pertaining to Anakin, with some tweaks, you could easily create an edit where it doesn’t seem like Anakin turns to the dark side - without having to remove most of those early scenes.

Here’s proof of concept using clips from my edit:
https://drive.google.com/file/d/1SkKsTcRHBWuSvfqnD4ga9pf8xiIFERub/view?usp=sharing

Right off the bat, Anakin’s established as totally understanding of the Jedi’s POV on Palpatine, and even lobbies their concerns. Rather than being all-in on Palps, he just has faith that he isn’t as bad as the Jedi think he is. By removing his petulance and entitlement, his lashing out at Padme, he’s allowed to be at odds with the council without explicitly telegraphing a turn. It becomes an understandable wariness, not lingering darkness. Palpatine trying to turn Anakin against Padme is a key point, because with the next scene, it doesn’t necessarily work. Anakin will brood about it, but by instead confiding in Padme tenderly about his dreams, he rejects that manipulation. New Canon Cut puts him at a crossroads of two equally possible decisions, but have Anakin apologizing to Obi-Wan after everything, and it looks more like Anakin has come back around to the Jedi’s perspective. Especially if the last time we see him, he’s going to turn Palpatine in. The groundwork for the ESB reveal is still laid, but it’s not obvious.

EDIT: But I agree that this isn’t necessary especially since the best parts of ROTS are in the last act. I also think flashbacks to TPM and AOTC definitely don’t need to happen. 95% of the prequel story is in ROTS imo, not just 80. The context that would be missing is pretty irrelevant and sometimes works against the film.