If you want to disable all the hardware buttons on your Windows 11/10 Tablet PC then the Local Group Policy Editor and Registry Editor can help you turn off or disable all the OEM-defined buttons.

The Tablet mode in Windows 10 maximizes all apps to fill the entire screen. In addition, the Start menu is divided into two screens; one with tiles that can be rearranged by the user and another ...

The startup mode in a newly installed Windows 10 is the Desktop ... There is no button to switch to Desktop mode. Desktop mode is selected by deselecting Tablet mode in the Action Center.