Curate, connect, and discover
When I think about Larry in AA3 I wonder if the writer suddenly decided they didn't like him that much and decided to make it known in the game to the point where it bleeds to the characters (both Phoenix, especially him! and Edgeworth seem to see him as the 'annoying ass friend') and himself by flanderizing him or if this was an genuine decision to see how a person's life can go downhill over time and tried to make it funny.
Honestly I think it's the former (writers decided they didn't like Larry anymore), because I don't necessarily think Larry's life is going downhill. He found his talent in art with a mentor and he's attempting to become a better person... only for his mentor to then die. If it were anyone else this would spark some sort of meaningful character arc... but it doesn't. The game just turns Larry into more of a laughing stock. I don't get it, truly. They drop so much information about his trauma but it's treated like a joke. Phoenix and Miles don't even act like they care about him as a friend anymore... just why??
Also I do believe writers' attitudes towards characters often bleed into the writing and then bleed into fan perception.