@Duckw545 No, she isn't. Here are my counter-arguments: -
Her backstory makes her a dark foil to Po. Mantis, Shifu, and Viper were accepted.
She uses external transformations for power and authority while Po embraces internal change to inspire hope and wisdom.
Both are polar opposites as mentors and spiritual leaders.
She makes a lot of strategic decisions.
She challenges Po's adaptability so it makes the common criticism that Chameleon doesn't challenge Po in any way pointless.
So I don't see why she is generic but I respect your opinion.
Chameleon is pretty underrated. I also think she is better written than Kai. Yeah, I said it.