AMD Link ended support in January and Nvidia GameStream is being actively removed from Shield devices in favour of Geforce Now. Fortunately, a number of other open and closed source solutions offer flexible and arguably better experiences. Here are the best solutions for streaming games to a range of devices in your house and on the move.https://www.notebookcheck.net/AMD-Link-and-Nvidia-GameStream-have-bitten-the-dust-Here-are-the-3-best-solutions-for-streaming-your-gaming-PC-to-any-device.829397.0.html
I would add that something like ZeroTier (which is free) is enough to stream via internet using Sunshine.