Here is a step-by-step guide on showing the taskbar on all the monitors that are connected to the computer running the latest Windows 11 operating system.
Step 1: Open the Settings application on your Windows 11 computer. For this, open the Start Menu and click on the Settings app or search for the application and click on it from the search results. Alternatively, you can also press the Windows + I keys on the keyboard to open the app.
Step 2: When the Settings app opens, click on the “Personalization” option from the left sidebar.
Step 3: After that, click on the “Taskbar” option and then select the “Taskbar behaviors” settings.
Step 4: Under the Taskbar Behaviours settings, tick the checkbox for the “Show my taskbar on all displays” option.

That’s it. Once you have followed the above-mentioned step-by-step guide on your computer, the taskbar will be visible on all the screens connected to your system.
The taskbar will show up automatically once you make the changes described above, without the need of changing display settings.