That's very interesting take on this.
Playing CP 2077 for the first time was the most intense gaming experience that I have ever had and for months I tried to figure out what made it so. First person perspective is huge contributing factor but why and I remembered some NPC's from Glen, City Center. One type particularly, one with long brown coat wandering in sort of absent minded manner. Someone who's going going to lunch or meeting and while I'm not physically like that there's something in body language and that, in real life, that could be me so naturally that's NPC that presents something quite relatable and I think that had a lot influence for my experience, even I didn't perhaps register that on very conscious level during my first playthrough.
The trouble is the way some people use the word "immersion" and the way other people interpret the meaning.
"Immersion" in video games, to many if not most players, is used to mean: "I am totally sucked in by this game, and it completely captures my attention -- I can't put it down!"
To many others, it means: "I feel like I'm actually there, in that world. It's so realistic!"
And to others, it means: "It feels like I'm thrown in the deep end with this game. So much to do and so much to think about!"
^ That's the problem with using the actual word
immersion for anything.
The actual meaning of the word is:
a.) submerge completely in liquid
b.) absorbing involvement
So...all of the above meanings can apply...and it can be completely unclear which meaning is intended by the speaker.
It is therefore perfectly valid to say,
"1st-person perspective is objectively more immersive than 3rd-person." This uses definition a.) metaphorically. Being in 1st-person means I am completely
immersed in the game world -- looking out of my character's eyes as if I myself were actually there. If the game world is like a pool, 1st-person means every part of my perspective is completely "under water". This is unarguably more "immersed" in the gameworld than a disembodied, 3rd-person camera offering a more omniscient perspective of the gameworld.
However, this does not mean that people will universally
like 1st-person more. They may find it to be overwhelming, annoying, or frustrating to play 1st-person games because of the way that limited view of the gameworld works. They may dislike the controls and responsiveness. They may dislike the less cinematic views, and missing cool-factor of being able to see your character. Hence, it would also be perfectly valid to say,
"I don't like 1st-person games because I don't find them immersive." This uses definition b.) to correctly argue a subjective consideration of the effect the game's perspective has on that player's enjoyment, how "absorbing" they find it, and level of "involvement" that they feel.
So, two, perfectly valid statements, one objective and one subjective, each of which correctly and validly uses different meanings of the same word to express completely conflicting ideas.
The problem isn't people's understanding or arguments -- it's that the freaking English language is a mess. It's best not to use words like this if they introduce vaguities to the core understanding of the concepts being discussed...but try convincing advertisers that want to use those powerful keywords and catch phrases.