Subjective of course, and I know this is off-topic, but I felt Fisher's handling in Rise of Skywalker was done respectfully and with good taste. Both with her repurposed footage and even her death, although I'm sure my opinion is in the minority.
Regardless, I used Disney and Marvel as a catch-all for both the creative team and producers. I'm aware things will depend on how Coogler handles it, though he'll probably need confirmation and approval from people like Feige and Chapek and the like. And unlike Fisher, Boseman was dealing with this issue for four years. I'm sure Coogler, Feige, etc. all were aware about his illness whereas Kennedy, Abrams, etc. were forced into an awful position out of the blue.