I'm pretty happy with my multi-monitor setup. Using Dash 2 Panel, I have nice left or bottom panels which contain everything and minimize the wasted vertical space for me.

The only problem I have is with the mounting number of icons in the tray. Is there a Windows-like option to automatically hide most of them under a popup? I can't find anything on extensions.gnome.org or any relevant advice anywhere. I can't be the only one to have an issue with a large number of icons in the tray.

Screenshot from 2019-11-15 13-50-48.jpg