Question about Samsung QE75QN95A

I briefly added the QE75QN95A to my shopping basket, but then deleted it again. Two questions: 1. once the TV is in the shopping basket, I don't see the extra soundbar as an additional product. Instead, I am offered another one with lower quality. Which soundbar is now in the additional package? 2 I would like to have the TV mounted on the wall. However, I see that it comes without a wall bracket. Do I have to order one separately? If so, which one do you recommend for swivelling? Thanks for the support. Greetings ralph