They don’t have the means to produce at scale, which has resulted in wild price fluctuations on their end. (even though to steamdeck OLED did sell out at the much higher price.) To me at most they will continue with the controller, but that’s about it.
Valve is one of the rare company that has a vision(that people actually wanted) and will stick to it long term while adapt to the situation, and they already sink millions if not billions into develop their own unique ecosystem for that. Every hardware you see them put out before this, the first controller, first console, VR, OS, Steam Link, all lead to what they have today. They climbed a cliff to reach here, this temporary setback is really nothing to them.