To return to the Steam interface on your Steam Deck, simply press the Steam button located on the left side of the device. This will bring you back to the Steam Deck's main menu, where you can access your games, library, and other Steam features.
If you're currently in a game, pressing the Steam button will open the Quick Access menu, which allows you to access various options like:
- Switch between game and desktop: Select "Switch to Desktop" to leave the game and return to the Steam Deck's desktop environment.
- Return to the main menu: Select "Exit Game" to close the current game and return to the Steam Deck's main menu.
You can also use the Xbox button on the Steam Deck to quickly access the Quick Access menu.