The latest elementary OS 5.1.7 does not allow other apps to show in the wingpanel. And there is a simple fix for that. In this article I will show you how to fix that.
Open file manager as administrator.
Go to this location
/etc/xdg/autostart and open the file
indicator-application.desktop in code editor.
Replace the line
and save the file.
Now you need to install wingpanel-indicator-ayatana which is no longer available in elementary OS. So you can download them here. You should install the file which doesn’t have
dbg in its name.
Now restart the system.