RemoteFX vGPU Setup and Configuration Guide for Windows Server 2012 - TechNet Articles - United States (English) - TechNet Wiki
Q.49597: You need to add the RemoteFX 3D Video Adapter
RemoteFX 3D Video Adapter – Busy Saving The World
How to use Windows 10 RemoteFX with GPU acceleration and sound in Hyper-v - NetOSec
RemoteFX to redirect USB web cam into Hyper-V VM with VMConnect.exe? - Microsoft Q&A
HyperV "GPU RemoteFX 3D Video adapter" gone in Windows 2019 Hyper V - GEEKDECODER
Hyper-V no longer supports RemoteFX 3D??? : r/HyperV
RemoteFX in Windows 10 Client Hyper-V
How To Enable RemoteFX VGPU Support In Hyper-V
Improve virtual machine graphics performance with RemoteFX (GPU Passthrough / vGPU) with Hyper-V on WS 2012 R2 or WS 2016 - Microsoft - Tutorials - InformatiWeb Pro