Judging by the image in the "Speeds and feeds" section, there are only four shoulder buttons. Also, looking more closely at the placement, it looks like they're

Judging by the image in the "Speeds and feeds" section, there are only four shoulder buttons. Also, looking more closely at the placement, it looks like they're putting more emphasis on touchpads over the joysticks, and certainly over the D-pad, much like the Steam Controller.