Klavier Gavin deserved an arc. He could've been really interesting if he was given one. By starting him off with the ideals that the trilogy preached they didn't create much room for growth strictly in terms of politics and how he works in the courtroom because he was already ideologically aligned with the morals of 4. Which was a fantastic setup for a positive rival character. But they really didn't do anything super interesting with his character. They gave him a good work-life balance and they didn't create room to elaborate on any of his personal relationships because of that. There was still so much they could've done for him to get an arc as a character outside of the political commentary his character is supposed to make though. His feelings surrounding Daryan Crescend's arrest were really under-explored and his relationship with Kristoph is never fleshed out at all. Like the game presented that they were brothers, but we don't get to see them talk about or to each other for most of it. His dynamic with Apollo isn't even fleshed out, it just stops at Apollo being jealous of him. Klavier's feelings about Apollo aren't even stated clearly because Klav is just a guy who does his job like a professional. Him and Apollo aren't even really friends by the end of the game. They're aquaintances who may occasionally bump into eachother in the workplace. The closest we get to a contentious workplace relationship is with Ema, and she holds most of the animosity there. So he has like no defined relationships and no arc surrounding his political views when it comes to the legal system or his approach to prosecution. It feels like such a waste because I like Klavier a lot. He's funny. But fuck he's so shallow compared to the other prosecuters.