floating

So when I head into the menu (where I check on the floating apps to select a different one to navigate to) I have noticed this floating box seemingly completely out of place. I was wondering if there was a way to remove it since it completely overlays ontop of the floating app windows making the...

In Xiaomi MI 9 MIUI 11 9.9.27 latest. Floating things dont work .... Example, the call of whatsapp, the call of messanger, the call of google duo, all the floating things dont work. When you back from one of this call to "desktop" the call disappear instead to show the call in a little rettangle.