Upcoming APUs sporting Zen 4 cores and RDNA 3+ graphics are claimed to be much faster than existing chips, and look ideal for handhelds.
Honestly I think it's probably too soon for the kind of significant performance increase Valve is wanting for the Steam Deck 2. Not to mention that the OLED deck just came out. That said, even if these chips don't make it to a Deck 2 I'm sure we'll see them in competing devices.
@solberg@Fubarberry It already requires a colossal effort to run Windows games on Linux. Adding ARM to the equation would only be a solution looking for a problem.