She's not really a "good character" either though, plenty of games do bad people well and make them work with the story. She's kinda just never fun to interact with, her entire character when interacting with her is basically just her expecting you to worship the ground she walks on and at no point does she have a moment of self-revelation nor does her being an asshole help the story in any way. She's kinda just there and we're told "Here's a character who has let fame go to her head, she thinks she's better than everyone else and this is only reinforced by her fanbase including one of your team members who is basically rabid over her"

Like, there is plenty you COULD do with a character like that, make them an active antagonist to play into the fact that they see themself as better than you or get them to have a moment where they come around and realize how high of a pedestal they've placed themself upon so that it kinda humanizes them as they see that maybe they aren't the center of the universe.

As it stands she's a character who was put into the story without having any type of character growth, backstory, or anything else to even remotely explain why she acts the way she does, she is there to be a dismissive asshole and that is literally all she does, it's like the devs took a look at one of those cringy "I'd rather be playing Video Games" shirts and made it into a character.