Maybe I'm deeper into the information for the Snyder universe, but it's pretty widely known that Snyders original story arc was 5 films, essentially covering Superman's full arc.
Man of Steel
BvS
Justice League (which we now get as ZSJL)
JL 2
JL 3
JL3 from what I have heard should bring Superman back to the typical "Boyscout version" in the bright blue and red, but he has to go through hardships with Darkseid etc to "get there". That's the story.
To me that sounds very compelling and interesting, especially if it is with Cavil and the rest of the currently established team.
But many seemed to want a modern day Reeves version served straight up on a plate. To me that seems pretty damn boring.
Hence I support the Snyder Cut, subscribe to HBO Max etc etc. If successful, then hopefully HBO Max can continue with JL 2 & 3 on HBO Max in series form and close out the full story for Superman.