IMHO, they lost sight of the football after Endgame and it became obvious that they had no further game plan. This whole everything based upon different dimensions /timelines/ alternate universe thing wore thin quickly; we saw it but surprise, the Disney brass failed to see it. On top of that was making the male super heroes like Thor and Hulk seem comical while pushing some DEI agenda just took the enjoyment and suspense out of the equation.
They should have read the comics and stayed with the storylines rather than try to push new agendas that contradict the original stories and characters. I wouldn't have thought that Disney would do that to Marvel, but they have screwed the pooch on everything else, so I shouldn't be surprised. I think they only have one movie planned for 2024; that certainly isn't planning ahead.