To remove shortcuts from your computer's desktop, just right-click on them and select "Delete" or "Move to Trash." You can also use the Delete key on your keyboard, or drag the shortcuts to the trash.
Although drag-and-drop support for pinning icons to the Taskbar is almost gone in Windows 11, you can still pin or unpin icons to the Taskbar. However, if you want to unpin all taskbar icons at once ...