I don't know where else to post this, but I had an ah-ha moment while reading an article (from July 2018) about Ant Man and the Wasp re: Feige and how the MCU was putting movie story arcs together.
The director for Ant Man and and the Wasp was quoted as saying, "… I know everyone is talking about or writing about, "When is the superhero movie fatigue going to set in?" And it could be any time. That's every director's fear. "Oh, it's going to be my movie." But nobody is more painfully aware of that than Kevin Feige and the people at Marvel, which is why you want to do something different. They encourage idiosyncrasy. They want [the films] to be very specific and very different from each other." https://www.hollywoodreporter.com/heat-vision/ant-man-wasp-michelle-pfeiffer-had-be-convinced-join-1124434
Somewhere I remember reading that Kathleen Kennedy was trying to follow Feige's model of getting new directors to do different things and make their movies and story lines "theirs". I recall Rian Johnson saying those were his instructions as well.
In the MCU I think that has worked well for each Character's story, but the MCU didn't do that "within" the Character's storylines themselves. Iron Man has one feel, Thor has another, Guardians of the Galaxy yet another, and Ant Man has yet a different one again. Bring them together and you have Avengers - another feel altogether (although there have been different directors for the Avenger's movies). But within the MCU character's movie each has the same "feel" (except The Incredible Hulk (2008 - Edward Norton) - which many of us forget is actually part of the MCU).
Star Wars is a continuous story with the same characters (think Avengers). They could have their own adventures but I think most of us agree the Solo movie isn't where Disney messed up. Solo may not have been great, but it wasn't horrible either (thanks Ron Howard). I wonder how Solo would have done had it been released before SW VII (where they out-of-character killed Solo as a sacrificial lamb). The problem is SW VII stretched the plausibility of the main story (and insulted our sensibilities with DS 3, trench run, etc.), but we were all willing to see where the story was going. Then SW VIII derailed the story all together by taking Luke and a lot of other things/people out-of-character. Now SW IX has the near impossible task of not only entertaining us with a story that many no longer care about, but to also make sense of a story-arc from SW VII and SW VIII without doing a mea culpa. That is a tall order.
Seats are still available opening night at all theaters around me.