Removing annoying Cisco Jabber thingy

Cisco Jabber 11.7 on Windows 10. It has a small, somewhat hidden grey bar at the top of my screen, that shows some buttons and a search field if I put the mouse over it. I didn’t know the name of it, and it’s a bit hard to find a solution for removing it without that. In the settings nothing seems to do the trick or to be at least somewhat related.

Apparently, this is the “docked window”. On the main window, after clicking the gear button, there is a checkbox for “Show docked window”, that does remove it.