These plot leaks are just meaningless, sounds so obvious.There seems to be no focus on Toms Spiderman and no character development.Also the leaks state that everything happens in the mcu earth which Im pretty sure is not the case.The movie's name is literally Spiderman No Way Home,and in both the lego sets we saw that Peter has a bike he constructs with strange.This bike and the powers given by strange will most likely be used by Peter to travel the multiverse and maybe get stuck somewhere, hence no way home unless he interacts with the other spidermen and takes down the villains .I do believe the final act could be in the mcu earth, but Im pretty sure most of the movie will be Peter on other earths.