I'm not sure if this is a hot take but
Chat Noir should've gotten a second love interest, not Adrien.
Like I know Kagami IS a foil to Ladybug, so she does serve a function like Luka does with Marinette. I get that part.
But why I mainly think is...well...:
Luka acts like the perfect partner and is essentially Marinette's free therapist. Someone she can rely on, when things get tough.
ADRIEN DOESN'T HAVE ANYONE LIKE THAT! And no Marinette herself doesn't count! Either his support is taken away or they lean on Marinette/Ladybug instead.
And I feel sorry for Kagami and acknowledge that Adrien wasn't the best in the relationship either, but Kagami isn't the perfect girlfriend for Adrien.
Yes they could relate to things and she had points, but compared to Luka, she only cared about the Adrien parts, not the Chat parts.
Also I know with Adrien's obliviousness, he might need a more blunter partner, but at the same time, BOUNDERIES! While not as bad as Marinette, Kagami could be pushy at times.
I guess I just wanted Chat to have someone in his corner for him to talk too and lean on when things get tough. Because neither Kagami or Marinette are it.