Valve confirm Steam Deck stock issues due to "memory and storage shortages"
www.gamingonlinux.com
We reported recently how the Steam Deck was completely out of stock in the USA, Canada and Asia and now Valve have put up a short statement on it.

Note: Steam Deck OLED may be out-of-stock intermittently in some regions due to memory and storage shortages. Steam Deck LCD 256GB is no longer in production, and once sold out will no longer be available.

Not a surprise, pretty much everyone assumed this was the reason.