How to Display and Hide the Windows 10 Desktop
Use the Win+D shortcut to display and hide the desktop. This command forces Windows to switch to the desktop immediately and minimize all open windows to the taskbar. Use the same shortcut to bring back those open windows.
How to Create Virtual Desktops
Windows 10 includes virtual desktops, which offer more than one version of your workspace. One good use of virtual desktops is to separate professional and personal work. Press Win+Ctrl+D to add a new virtual desktop. Repeat the button command to create more. Press the Win+Ctrl keys plus the left and right arrow keys to switch between screens.
How to Display the Task View to See All Virtual Desktops
Press the Task View button on the toolbar to open a full-screen overlay that displays thumbnails of each virtual desktop and apps that support timeline history. This feature was new in the Windows 10 18.09 release. The Task View button looks like a filmstrip next to the Cortana icon on the taskbar by default. In Task View, you can find apps and web pages you previously browsed. You can also delete, move items to, and add new virtual desktops.