Sunshine has some documentation gaps that are annoying to figure out but there enough there you can get it done with some effort. Moonlight feels really crunchy though. Edges are rough and it always felt unfinished. I really think selkies v2 is going to kill it.
Sunshine+moonlight is better for an app based deployment, like set top boxes without web browsers. But if you have a browser available on the client, I can see some crazy possibilities with selkies.
Gamesonwhales solves the sunshine multi user issue in a different way. It’s better for renting out your box as a node for cloud gaming. It’s damn near turnkey for that and super clever. But that’s not what I’m trying to do here so it’s just adding complexity.