Anyone else feel like some of One Tree Hill best moments was actors playing themselves? Were the storylines accurate to reality ?

I’ve been thinking about how much the show’s writing seemed to lean into the actors' actual lives. It feels like the writers stopped creating and started observing sometimes. For example: Haley’s Music: Maybe this storyline happened because of Bethany Joy Lenz actual talent in music and it grounded the character in something authentic. Also Haley was a virgin and about having sex after marriage which could have reflected in Bethanys own catholic beliefs during the time she was in the cult. The Chad/Lucas Parallel: Lucas’s dating life often mirrored Chad’s headlines, and the Brooke/Lucas tension felt way too real because of their actual relationship/divorce. Also, maybe the heart condition plot being a workaround for Chad not being a basketball player in real life? Nathan’s Redemption: James Lafferty actually has the skills, so Nathan’s basketball journey felt reflective of that. Plus, James seems so grounded in interviews, it feels like Nathan evolved into James over time. The Chris Keller and Haley story maybe developed because they did develop feelings for one another in real life. Which leaves me with the biggest question about Naley Chemistry: did the writers lean into Nathan and Haley because James and Bethany had a natural chemistry and feelings in real life???. The way Nathan spoke to Haley was so much more tender than any other couple. It makes me wonder if there were real feelings there and just 'bad timing' in the real world. What do you think?