First off, don't even think about yelling "Spoiler Alert" at me. "Avengers: Endgame" has been out for almost a month.
If you don't know everything by now, it doesn't matter to you anyway.
Second, if you'd have told me that at more than three hours in length, ANYTHING would have been left on the cutting room floor or in the writer's room on this movie, I'd have said you were nuts.
Apparently, I would have been loud wrong. Further, some of these would have COMPLETELY changed the way the movie ends and how we feel about it.