Contrary to the hype of the record breaking No way home trailer, the reception so far has been pretty mixed, maybe even negative because not everyone is on the Nostalgia board train and Spiderman in the MCU has never really gotten to be Spiderman as we should know him. As a CBR moderator called Frontier said on the TV/Forum No way Home thread. it was way too soon in the MCU to do like a Spiderverse film version.
So I trust myself when I say, Feige is way in over his head with this next gimmick of letting the fox and sony characters cross over because Feige is not capable of thinking outside the box with how to evolve superhero movies as fox and sony could do in their best primes.
I dont think any fox character in the mcu will make a big impact if they cannot match the thought outside of the box approach in their original movies.
MCU should just make an original story of x-men, even if it is the same generic mcu formula movie as was done with Dr Strange and Ant Man. That would still be more reputable than just start letting fox characters start popping up everywhere when no one knows officially what a mutant is in the MCU.