Marvel got way too comfortable after Endgame and they flooded the market with mediocrity.
They don’t have a gameplan and there’s no main attraction since almost all of the best characters are either dead (Iron Man, Black Panther), retired (Steve Rogers), or they went soft (Thor and Hulk).
The Avengers broke up. The Guardians broke up. Spider-man is partially owned by Sony. They’re taking WAY too long with all the characters people really want (Fantastic Four, X-men, Blade).
They’re taking too much influence from these new millennium post-2010 fanfic writers instead of the Jim Shooter era, and it feels like they’re only writing these movies for Twitter instead of their actual fans.