Use the taskbar for more than seeing your apps and checking the time. You can personalize it in many ways—change the color and size, pin your favorite apps to it, move it around on your screen, and rearrange or resize taskbar buttons.
You can hide the taskbar both in desktop mode and tablet mode. Press and hold or right-click any empty space on the taskbar, select Taskbar settings, select Taskbar behaviors, and select Automatically hide the taskbar.