It’s rather interesting to me how nobody puts any value on the Deck trackpads in comparisons like these, and yet they are basically essential if you want the device to be able to play anything but console-optimized games / games that are built for gamepads first.
Playing something like Skyrim on one of the alternative portables can certainly be done, but being able to comfortably play games like Against the Storm, Anno, Civilization, Dwarf Fortress, Factorio, Homeworld, Northgard, OpenTTD, Stellaris, etc is where the Deck really shines and where all the “alternatives” fall completely flat.
Edit: Not to mention that trying to run Windows without any kind of direct mouse input is really painful, and all the “alternatives” keep doing exactly that.