Disagree with you, lot of peoples have complained that to follow the MCU is like to do homework, for us it's not alot, but the general audience it's more complicated, specially a movie like The 'Marvels" who present itself like a direct sequel of a TV show, most audience will logically wait for Disney plus to see everything, some other will simply ignore them, but it's clearly not New viewer friendly, that clear the audience have new habit post-covid and the apathy about the theaters experience (box office in general are really Bad), that nothing to do with a MCU fatigue but more about New accessibilty from streaming, look the final of Loki was the same day that the Marvels, and Loki is probably more important for the général story of the multiverse.
But agree that things can't stay too long, specially with multiples TV shows, movies etc ..centered around the same World, Marvel seem aware of that according the rumor and will prepare a reboot after Secret Wars or a little after that