Yeah; the Steam Deck still runs a Zen 2 chip, while handhelds like the Ally X are on Zen 4. We'll likely start seeing some handheld PCs begin upgrading to Zen 5/Strix Point this year, and IMO that may be the point where these devices start actually being able to replace desktop gaming PCs for some gamers.
[1] https://www.youtube.com/watch?v=sAu7L1hezJA