Steam's Hardware and Software Survey for February 2020 has been published, and although AMD enjoyed a tiny increase in overall PC video card usage the charts for change in share and overall share still belong to Nvidia. The GeForce GTX 16 series has been particularly successful for Team Green, with four cards from that series featuring in the top 10 movers.
https://www.notebookcheck.net/Nvidia-s-GeForce-GTX-16-series-enjoys-robust-upward-movement-in-Steam-s-hardware-survey-while-AMD-graphics-cards-flounder.455496.0.html