I was excited for a sec then saw it requires steam link. The only idea I had for a remote steam setup involved a ps vita, which can only do it through moonlight/sunshine. Unfortunately that requires having a display plugged in. I tried patching drivers and all sorts of other crap and none of it did anything at all. Dummy HDMI plug would be an option but if I had to spend money I'd rather just get a steam deck.
While this solution may work for phones or tablets or some such, you either have to lug around a controller or deal with touch controls. Not to mention having to either fork out for a 300mbps upload and download internet connections at both ends or taking a pill that makes you not see JPEG compression.