In this video, I show you how to convert Ubuntu to Pop!_OS without having to do a full Linux re-installation.
Commands:
sudo add-apt-repository ppa:system76/pop
sudo apt-get install pop-desktop
UPDATE: As of Ubuntu 20.04, you no longer need to run "sudo apt install sessioninstaller".
*To hide the dock, just go into Tweaks, Extensions, and disable Ubuntu Dock. My apologies for not noticing it sooner.