People setting themselves up for disappointment over thinking theories
Here's what it is: 90% of "leaks" and "sources" and "theories" are just educated guesses. "It's Dr. Strange & Wanda & Multiverse so I'll check comics and it's this, this this & this." And only one "this" comes through, and they front like they knew it all from the jump.
And then new trailer comes out and you extrapolate "That scene means this, this, this this and this, and that scene means this, this and this." and you got 2-3 "this" right on that round because you have more information to base your guesses on, but again it's just stabs, but they're based on source material so more of them can hit vitals the more direction you can garner from footage and cast and plot and etc...
The key is to let yourself know that in a movie that is both "Dr Strange" and "Multiverse," literally everything possible is on the table so instead of trying to pare down what's in the film off scattered scenes, just let that hype you up to unlimited potential and let yourself enjoy whatever comes out as part of the narrative.
Plus realize that if Nightmare's a villain over half of what you've been shown can be dreams.
AND Marvel's tossed fake scenes in their trailers before to throw people off, so you can't even trust that.