Deconz app under Ubuntu is not displayed

Hi guys,

I have a Conbee Strick 3 and an Ubuntu Desktop version 18.04.6 installed. The stick is connected and I have installed everything according to these instructions:

deconz 2.24.2 is installed.

There is no error message during the installation and everything seems ok, but the deconz app does not appear in the menu. I can’t start it. Does anyone have any idea what the problem could be?