Is there any possibility to autohide the Panel in GNOME session? In picture below I selected the area what I mean.
I was able to achieve the behavior you want in the following way in my Ubuntu 18.04.
- Installed Dash to Panel GNOME Shell Extension.
To install it, simply search for "Dash to Panel" in Ubuntu Software.
- Once installed, right clicked on "show apps" button on task bar and clicked "Dash to Panel Settings".
- I chose Panel Intellihide "On".
- You may edit more settings by clicking "settings button" adjacent to Intellihide
try https://extensions.gnome.org/extension/1287/unite/. It brings back the Unity Shell look and feel to Ubuntu 18.04.