If Steam Deck is not turning on or charging, ... Now, release the Power button but hold on to the Ellipses button. An array of SteamOS images or some restore points will appear on the screen.

This Steam Deck feature is so extensive that you can get practically any game to work well with the portable console’s thumbsticks, triggers and buttons, and I’ve since used it to breathe new ...

To enter the Steam Deck’s Desktop mode, hit the Steam button, scroll down to Power, and select ”Switch to Desktop.” Then, navigate with these controls: Right trackpad for cursor control.

Restart your Steam Deck by holding the Power button down for around 10 to 12 seconds to reboot it. Rebooting may take some time after an update, but this can often fix any problems you were having.