I agree, his character felt a bit 2D in Solo. If they had gone with Lando’s backstory from the book, it would’ve added a lot to his character. Not knowing how to pilot is a fantastic character flaw. It adds new motivations to move the story forward and makes Lando more relatable. Being a bad card player is an ok flaw, but it’s made null by being good at cheating. He’s solved his own problem, so nothing is added to his character except a little flavor.