Most Persona characters are badly written.
Gonna agree with Yu here. Also, the best story and characters in the series belong to the P2 duo of games.
Yeah I got one about this really niche Persona spin off called Shin Megami Tensei
P5 looks great but minus the Twins (And they are still relatively easy with a decent strategy), it's dirt easy, so much so that it was mostly a visual novel to me. Palaces become a drag after the first playthrough and Mementos is legit awful, so what I say is after P5, especially if you started out with this one, do go back and try 4 and 3, dare I say 2 or even the main Shin Megami Tensei series from which Persona is a spin-off of if you are looking for more gameplay focused series