You can hide your taskbar using Windows 11 settings, but that won't hide it completely. The only way to do that is to use a third-party application.

Windows 11 brings a few changes to the table and a few new ways of doing things, including how to hide the taskbar.

To hide your taskbar using the built-in Windows setting, simply right-click an empty place on the taskbar, then click Taskbar Settings. Scroll down until you see Taskbar behaviors and click it.