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.
A fair point.
Not moving the goalposts but steam offers the playability index. So to know "which" AAA games at "what" performance is really varied.
I think it is a bunch of media speak that they wrote there and is a poor representation of what the hardware can honestly do.
As always, it pays to research purchases thoroughly.