I really like the direction you took with this, it's definitely (as everyone is saying) one of the most unique approaches here.
I'd love to dive back into it and explore all the alternative endings but after running through twice I'm kind of put of by having to sit through the intro again; so you could perhaps introduce an optional skip which players can use after completing the first playthrough.
The most apparent thing for me woul be perhaps reducing the screen size for some of the non-CRT-type shots, as their lack of resolution really showed through on the big screen
Most players have mentioned something about interactivity... and I definitely agree. I think the easiest way to remedy this would be to introduce some more interactivity at the very beginning so that the introduction video feels less like an intro cutscene and more like a key part of the game itself. First time around I was sitting their waiting for my moment to go (as I do with most introductory cutscenes) which inherently changes how I view it.
Also, regarding the intro, I'm unsure whether the man (with purple backgroun and beard) was meant to signify the player or just another subject. But I personally read it as the player. This made it a bit problematic as it changed what my decisions meant; was I choosing for myself of for this character? This would also become slightly more problematic the more you diverge from being a white man with a beard (haha) as identification would become skewed. In this way I'd personally place the player as the recipent of the video, not a character on screen. But as this woul inherently change the postioning of the player it definitely shouldn't be done on a whim.
Finally, I was really intrigued by the ideas of alternative endings but throughout the playthrough I felt my choices felt kind of arbitrary; for example the "choose a testimony" felt like it would be irrelevant the order they were activated. Perhaps making it clearer when and where decisions mattered could help bring players back--and I say that because the key reason I went back for a second run was knowing that there were alternate endings. That said I suppose the rank at the end does give this to you in some way.
Either way, just some thoughts there. Really like the innovation and complexities you put into this and am super excited to see how your future projects will turn out!