TL;DR: Antec is going to be selling a Steam Deck competitive device, based on the Ayaneo Slide. The device has a slide up screen that reveals a keyboard, which is good because using desktop windows is much easier with a keyboard. However the device’s lowest estimated power draw at low/no load is 15w, meaning it will use comparable power to the deck running at max power. This means the battery life will probably be pretty rough when compared to the Deck. It will also likely have a much higher price point.
I did it once. To install emulators. I think it’s easier now, but early on you had to do a bunch of command line shit. On screen keyboard is terrible at that, but plug a keyboard in and it’s fine.
Never bothered since.