The taskbar in Windows 11 shows the Start menu, Search, Task View, Widgets, File Explorer, Microsoft Edge, and Microsoft Store buttons (icons) aligned to the center by default.
If you have more than one display connected to your PC, then you can show the taskbar on all displays instead of just on the main display.
The main taskbar is the taskbar with the clock and taskbar corner icons on it, and is on your main display. The taskbars that show on the other displays not set as your main display, do not have the clock and taskbar corner icons on them.
This tutorial will show you how to enable or disable show the taskbar on all displays for your account in Windows 11.