Steam Not Recognizing Controller. This is what did it for me. Once that finishes, unplug the controller and plug it back in, and after a few seconds, Steam should begin recognizing it.
The controller connects to the dongle when wireless, ES doesn't see it. The issue of Rocket League not recognizing controller can be fixed after recovering the firmware of the controller. I have a possible solution for those dealing with Steam Streaming not recognizing the controller until you are in the game.
If your steam doesn't recognize installed games, you can check if there is an option to reinstall the game on Steam client.
I can use my keyboard all day.
In that case, please disable Steam from automatically. The controller works fine when playing games running on the laptop but doesn't get recognized when using In-Home Streaming. I tried accessing the Steam Controller settings menu by pressing the Steam button on the controller but nothing happened.