Nahh, its indoor ping pong, Nadals game is made for the great outdoors.
It is, but Nadal beat Tsitsipas at 2019 ATP Finals, and again at 2020 ATP Finals.
Also Nadal beat Medvedev at 2019 ATP Finals, and almost beat Medvedev in straight sets at 2020 ATP Finals.
So he's very capable of winning it.
Pretty close in 2010, beat Djokovic, Berdych and Roddick in RR, beat Murray in the SF, and lost to Federer in 3 sets in the Final.