That’s like one of my major issues, Han bounced back and forth from coward to Mr smug dude but never actually developed or changed…
I didn’t mind that because that’s how he was at the start of ANH, his arc is there, not here.
If he only has an arc in the next movie then why would you make this one? Like I’m not saying he should have the same arc twice but he has to be well written for the movie to work, right?