Second panel hides below first one when out of focus

[Aravisian]

You have more than one option.

First option, do not have the panels Full Length:

Zorin OS Lite panel insanity

One perk of using Zorin OS Lite is the highly configurable Panel (taskbar.) This guide is not intended to be followed to the letter, but instead to be a template you can use to realize many different configurations the panel offers. The xfce4-panel can be used as a Desklet, for example. Or, as a multi-part panel. This is because you are not limited in the number of panels you can use. On my secondary display, I have four panels in use. Here, I will show the manner in which I have three configu…

Second option, use a full length thin top bar for Tasklist buttons only (Window Buttons).

Or use a vertical panel on the left or right. There are a lot of different ways of going about this, really...