From what I can tell, this is a 6 hour movie split into parts where there’s a beginning, middle, climax, and end. Whereas a show like the Mandalorian was middle, middle, middle, climax, end. So with the first few episodes of WandaVision it’s like a movie where you get the first chunk of the movie introducing the characters and setting, and then you have it build up to more storytelling in the middle, then you hit the climax in probably episodes 6-9 with the ending of the series also coinciding with episode 9. Or maybe it’s just a cliff hanger climax leading into Spider-Man or Doctor Strange.