Valve gave us the strongest wording yet that a Steam Deck 2 is actually real, although it's still clearly going to be some time away before there's enough of an upgrade.
The current deck is more than enough to handle most games today. There is no reason to rush the next one out. Let the technology simmer for a while, reduce a little. Turn into a fantastic lightweight little belt buckle that connects to a pair of AR glasses and tracks my hand movements so I can play without holding a controller or mouse/keyboard anywhere I want.
You're incorrect, and that's okay. We're talking about some future date where technology that doesn't exist today is available. We can ask for anything we want.
I ran Alyx with a WMR headset and a mobile 1060. It wasn't fantastic but it ran well enough that the experience wasn't diminished. A next gen Deck could easily handle it
If they somehow use those AMD NPU's as accelerators to handle spatial recognition, then it might be possible to at least add some of the needed functionality behind AR/VR without pounding the APU.
Or, considering it might be ARM, it might be an in-house or even AMD designed SoC with all the necessary bells and whistles to implement at the very least AR.