You don't chat and listen to custom music through your single player games? You haven't lived.
I have, but I don't see what that has to do with The Witcher 3.
It's not like Xbox One owners can't do this. Even if it's so-so, all Xbox One's come with headsets in-box as well. Not only that, but it's better than the one that comes with the PS4. They can chat during game just as much as PS4 players.
Also, I'd rather not listen to music during this game.