Yes, the fire is not explosion but its not normal fire as well so it cannot be treated as such, the normal definition of the fire doesn't apply here, the fire would have destroyed the multiverse and thats the overall statement, assuming it will happen overtime when it is not stated to be so is wrong

If the fire really took 100s and 1000s of years to destroy the multiverse then it would have been mentioned but since it isnt, we cannot assume that to be the case

Fire extinguisher is specifically designed to extinguish fires. Odin is not a fire extinguisher, his Odin Magic can do all sorts of stuff including nullifying a Multiversal level attack

- Dark Angel became a multi dimenional being by uniting with the fragment of the universe she in fact became one with One universe and not multiple universes her mind isbstated to be multi dimensional

- I sent this scan before The cascade is within thr universe where all the higher dimenions converge, there is no mention of the dimenions converging from the multiverse

- Loki's magic being multi dimensional

- There are multiple cosmic dimensions

- Galactus hits on different planes of reality

None of the scans above state that the multiple dimensions are from other universes, the characters are still existing within the same universe just talking about different planes of reality.

You need to show proof that the infinite dimensions are coming from other universes