Ethan Hawke's remarks about Marvel's not giving him as much creative freedom as the rest of the Marvel movies suggest. However, there are certainly many MCU films that are extremely popular, including Black Panther: Wakanda Forever, which is expected to be released sometime in the holidays.
Ethan Hawke has been in the Hollywood game for a long time, so he has some good knowledge on the state of the industry. Despite some minor criticism in the past, Hawke felt that Marvel is extremely actor-friendly. They may not be director-friendly, but they are very passionate about actors.
Ethan Hawke mentioned Martin Scorsese and Francis Ford Coppola in his remarks, referring to the films as not cinema and comparing them to theme parks. Coppola went a bit harsher, saying, "It doesn't know that anyone gets anything out of seeing the same movie over and over again." He didn't say it's despicable, but he admits that if you continue to watch these movies that aren't for 14-year-olds like they're F
Oscar Isaac and Ethan Hawke both signed on to Moon Knight because they knew it would be something different from the usual Marvel film narrative and that it wouldn't be too hyper-connected to the rest of the Marvel films. So it's likely that we won't see too much more of the actor in the superhero franchise.
The comments made by Ethan Hawkes about Marvel not giving him a ton of creative control may be true. There are certainly some MCU films where the creative signature of the filmmaker shines through, such as the ones directed by James Gunn, Taika Waititi, and Sam Raimi. There have also been instances of directors leaving MCU projects due to creative differences, with Edgar Wright, Ava DuVernay, and Scott Derrickson being some notable examples.
The Marvel Cinematic Universe's latest film, Thor: Love and Thunder, is doing everything in its current state at the box office, as well as the Black Panther sequel The Guardians of the Galaxy Holiday Special, which will be released sometime around the holidays. Supposedly, the Samuel L. Jackson-led Secret Invasion will also be available on Disney+ in 2022.