I find Zlatan's arrogant act one of the most cringy things in football. It's rather childish, and not even remotely funny.
Haaland's 'arrogance' on the other hand seems almost like an inside joke with his friends/teammates. I always feel like his teammates are slightly out of camera-view laughing their heads off and he knows it. He seems to poke fun at it too, on instagram.
I feel like Haaland is just enjoying himself not caring so much about how the media perceives it, while Zlatan even at 40 years old says stupid things that I used to say when I was 13.