I see lots of pages that around the April 2017 period talked about NVidia releasing drivers with WDDM 2.2 support. I also see a Microsoft page (here) that specifically mentioned the GTX 1050 GPU as one of the GPUs that meets requirements for something that makes use of WDDM 2.2. I put a GTX 1050 card in a Windows 10 Creator's Update machine (Build 16257.1) and tried NVidia's GeForce drivers from version 381.65 (the April version in which 2.2 support is said to exists) and later. I end up with WDDM 2.1 support consistently across many driver versions (which is below requirements for what I need). This includes the beta/experimental drivers.
Given an NVidia GPU is there any good way to identify whether or not it has WDDM 2.2 support before I buy it? NVidia mentions support in their drivers but there is no mention on how to identify whether or not it is supported on a specific card. Secondary to that question is there something special I need to do to get a WDDM 2.2 driver on the GTX 1050? Or is the above mentioned Microsoft page in error in calling out the card as one that has WDDM 2.2 support?