I can't see there being a prologue, and a Mind Flayer ship tutorial, and a beach section and more tutorials. That would make the early game drag on.
I can't see Backgrounds being more than just bonus skill specializtions, because they will never match the player's ideas.
Heaven forfend our RPG takes its time building character mood and setting...
That's what the actual game and companion interactions are for.
NPCs gradually opening themselves up to you is way better than you just being infodumped everything within the first minute of meeting someone.
In the event that you're referring to the player playing as one of the Origin characters there's going to be an introduction video to the different characters in the character creation menu. This should be sufficient to give you an idea of who the character is, what their personality and what their motivations are.