Could you share the suttas or dhamma talks that made you think this?
Because Buddhism doesn’t say that the mind is non-personal. It’s the core of an individual and determines the type of dhamma practices you’ll need to attain liberation.
If you’re referring to that sutta about “consciousness without feature,” that’s just a western mistranslation. everyone tries to cite that one isolated paragraph to claim that consciousness is non-personal, outside the body, and because of that it’s all one , like some Hindus say.
But if you read the thread, that’s not what the passage means, and not what the suttas teach.