First Pic
Each door leads to various possibilities and there are countless doors.
Second Pic
Man-Thing is connected to the Nexus, I know.
Third Pic
Logan is connected to the Multiverse. 2-A since the Nexus connected to infinite universes.
Fourth Pic is irrelevant.
Fifth Pic
Hyperbolic definition of the Omniverse.
Sixth Pic
Him being the enemy of the Omniversal Order doesn't mean he is Omniversal, whatever that means.
Archie Sonic Crossover doesn't count and doesn't prove that literally all of fiction is part of the Marvel Omniverse.
Don't use a random Quora answer and the Sonic Mania "Everything is canon" nonsense as true.
Lot of needlessly long things on Celestials only involving one out of context scan involving the Ultimate Nullifier. Spider-Man Beyonder isn't canon.
I need to read the Abraxas storyline myself.
Galactus isn't 1-A. Suggesting he is is also against the rules.
Galactus vs Scrier is a 2-A feat.
Galactus isn't a match for Chaos King and him being beyond time and space refers to linear time and 3D space.
Those are the Universal Abstracts.
Eternity embodies everything, this everything being the multiverse.
... Yeah, I think I'm done. Not seeing anything new that suggests anything above 2-A.