> Where can I find something about objects being "think of your code as representing the state and interactions of objects" honesty totally new to me.

I’m scratching my head how you think this is materially different than what you described in your first para. s/state/data and s/interactions/methods.

If anything though I would say the GP is more aligned with the classic definition as it highlights the focus is more on the messages (interactions) themselves rather than the implementation.