As Multiverses go... this film clearly would be the way to do it, with some Merc with a Mouth being employed as Marvel Jesus and going through the various convoluted storylines and in semi-random encounters killing and skewering enemies as well as recent Phase Four/Five themes and plot devices that have been overused now.
At worst this film can be like Spider-Man: No Way Home in a solid, successful and well received film that fails to qualitatively impact the MCU at large, or the Studios could use it as a lowkey reset button for their Multiverse Saga or whatever now that it's in utter shambles thanks to the endless connections between Disney Plus shows and movies, lackluster film reception in general as well as Kang's actor getting dumped from the MCU.
They could use this as an opportunity to be better. And while I doubt they can take this year long break where only this film is coming out for Marvel films to their advantage for improving MCU quality, it's certainly possible they could. They have the potential to use this film as an opportunity to make MCU films betterer again in 2025 or whatever.