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.
I’m glad to see some variation in this space (I almost said innovation except that it’s a combo of the Deck and Switch). But it’s still running Windows (see above) and it’s going to be around twice the price of a Deck.