They aren't planning to sell the Quadro versions to customers directly, unfortunately, but only to business purchasers. If you go to the Microsoft site (https://www.microsoft.com/en-us/p/surface-book-3/8xbw9g3z71f...), the preorder configurations for personal use only include the relatively weak baseline GPUs they've chosen (1650 and 1660). I confirmed this again by talking to a sales rep over chat.

The surfacebook 2 could not do vr with non windows mr headseats due to design changes that were made to make the tablet come off. I wonder if that is still the case with this one.

Are the Quatro cards suitable for gaming? I've always been under the impression they tuned or modified more for use in CAD and similar applications