MX Linux is grabbing popularity much faster than other Linux in the same category because of speed and its less resource consumption. By default, it comes with an Xfce desktop environment but with a left-side vertical taskbar, which is really uncomfortable and annoying at least for me. In case, the same goes for you and you also want to customize MX Linux Taskbar to the standard one, as we have on Linux Mint or Windows, then here is the solution.
1. Open MX Linux Panel Properties
On your MX Linux Desktop, right-click on the TaskBar and then select Panel⇒ Panel Preferences.
2. Change Taskbar orientation
From the Panel Preferences, first, uncheck the box given for Lock Panel, and then from the Mode drop-down select Horizontal.
Now, you will see the Panel in the Horizontal orientation but at the top of the screen, to move to the bottom, click on the multiple dots given at the left side and drag the MX Panel to the bottom of the screen.
After having the panel at the bottom one thing that remains problematic for some people is the position of the MX Linux start menu button.
It will remain on the right side and to move it to the left side, in Panel preferences, click on the Items tab and the move select Whisker Menu, drag it to the top. In the same way, move other icons. If you want to add any other application shortcut then that can be possible from there by using the + icon.
Finally, the old way or traditional Taskbar position will be on your latest MX Linux.