There are plenty of supposed Steam Deck killers available in the portable gaming space, from the Asus ROG Ally to the Lenovo Legion Go and all the Ayaneo and ONEXPLAYER devices in between. But none of them have managed to outright slay the dragon that is the mighty Steam Deck yet.
You could have had a miniaturised nuclear reactor and I still don’t think it would have kept up with the game gears appetite 😁 great little device but missed the mark on intended use.