Not sure why so many critics seem to love “Mank”. Maybe they didn’t do their homework: the central thesis of “Mank”– that Herman Mankiewicz didn’t get enough credit for “Citizen Kane” — has been thoroughly debunked. And it’s kind of beside the point anyway. So what if Mankiewicz wrote some or most of the dialogue? Welles produced, directed, co-wrote, and starred in “Citizen Kane”, and did all these things beautifully and brilliantly.
“Mank” doesn’t want to admit that Welles was the real genius. And he has been correctly regarded as such ever since “Citizen Kane” was released.