Poor headphones takes something away, but (unless they're so cheap they pick up static) it won't add anything to the song. What Nvidia is selling, in terms of audio, is having an AI filter between the song and your headphones that enhances the sound however it sees fit. It might take something away but more often than not it's just going to add something to it. You want to listen to Bad Bunny but the AI is going to generate English over Spanish because people are more likely to understand what he's singing about if it's in English. If you had headphones like that you'd throw them in the trash because they are trash.

It takes away sounds, but don’t hallucinate new ones

Adjusting literally any of the possible settings in a gane "takes away from the original artistic vision"

Those settings don't completely alter what the art looks like. It changes the method in which the math behind the scenes works. Like setting shadows from Ultra to Low doesn't remove the shadows, it just alters how they are rendered. Often this does not really affect the appearance at all.

Any game with any actual design put into it woild account for these and also be part of the artistic vision and intention.