The Steam Deck is a very capable device that can dual as a handheld, home console, and desktop PC with the right tool. However, without a mouse, it can be tricky trying to figure out how to use the Steam Deck's right-click function in Desktop Mode without a keyboard and mouse. Similarly, the Steam Deck's Gaming Mode has a right-click feature that differs from the Desktop Mode version. This guide will show you how to use a right-click function for the Steam Deck in Gaming Mode, and Desktop Mode.