Do you think valve is playing a game of chicken with Nintendo? Such as steam is waiting to launch the steam deck 2, after the switch 2 is launched. Aside from official comments. I say this because of the screen valve is using for the oled is similar to the switch.
Valve is waiting specifically for the right boost in performance and efficiency before they release Steam Deck 2. They are working on Deck 2 already but claimed it was at least ~2-3 years in the future.