Doesn’t sound like anything is wrong. Chams take longer to shed as they get older. They start to shed in pieces more and more. As long as none of the pieces are constricting toes or their tail it shouldn’t be anything to worry about.
Figaro is out and about of his cage a few times a day. No mobility issues at all.
He's even started to bottle feed, his water! I love watching his wee mouth opening and closing as the droplets fall into his mouth. They're definitely not the world's biggest drinkers!