Not sure I'd agree on immersion. I get pretty immersed in films and TV shows and they're not first-person. In this case it's even weirder, because you're constantly being pulled into third person for dialogue and cutscenes.
I don't quite agree with that, to me, in videogames, it's about controlling the character through perspectives, and cut-scenes are still in first person perspective through the eyes of a third person observer. In KCD2 you're always in first person perspective, but changing berween observer mode in cut scenes. So there's no real discrepancy.
I made Gemini explain the argument for me:
In video games, "first-person" and "third-person" are fundamentally about the camera's placement relative to the player's controlled character.
First-person: The camera is positioned as if it were the character's eyes, providing a subjective view.
Third-person: The camera is positioned behind or above the character, allowing the player to see the character within the environment. This is very much a technical implementation of where the "camera" is placed.
Crucially, in games, the player directly controls the actions of the character seen (or unseen, in first-person). This direct control heavily influences how these perspectives are experienced.
In film, "third-person" refers more to the narrative perspective. It means the story is being told by an observer who is not a character within the story.
The core difference is the element of interactivity. In games, the player is actively participating, whereas in film, the viewer is passively observing.
Therefore, in games, the terms are more about the technical camera placement, while in film, they're more about the narrative's viewpoint.
The technical nature of video game camera placement creates a different meaning for "first-person" and "third-person" compared to the narrative focus of film.