I think there's a misunderstanding.
You can only see the reviews of your own games (that's what @No time to play refers).
@shadree I think he's asking about other people's games.
If I understood correctly, you cannot see the reviews of games that are not yours, you can only see the final value when you expand the "more information" option.
There are several posts that talk about the subject, and Itch's review system really doesn't work like it does in other places.
As to whether this value affects the visibility of the game, there is no official document that clarifies it (that I know of). @No time to play, I seem to remember you saying that value doesn't affect visibility.