I do not understand the question.
/physical-games/store/tag-ai-generated
Is it possible? Of course it is possible. You can publish anything on Itch that is not illegal to publish and that is downloadable. You cannot publish something, if you do not have the rights to publish it, like copyright issues and such.
And why would you ask about audio in a so called physical game? Is there a athmospheric background music available to play, when playing the game?
And what do you mean with feedback? Feedback about what? If people like ai games in general? No, they do not. About 3/4 of those paid ai physical games have 0 sales. Only about 1/5 of the no-ai games have 0 sales in comparison.
Sigh. I complained about the term ai assisted and that people would not undestand it. There is no such thing as a classification of "ai assisted" on Itch. Or ai generated for the game itself. Even if you read it somewhere. It is meaningless. It only means that your game will have text, audio, graphics or code, that has been generated with generative ai tools (even if hand edited later). That's what "assisted" "means". And that is what is asked in the ai disclosure. It is not a seperate category of ai usage.
In your case this would be /physical-games/ai-graphics specifically.
(Oh, and to add to the confusion, /physical-games/ai-assisted is an alias of /physical-games/tag-ai-generated and "ai-generated" also contains a few games that have manually selected this verbatim as a tag.)