GNOME 3.36 is a default Ubuntu 20.04 desktop environment but this does not stop you to install and use other desktop environments. In fact, you can install a desktop environment with a single command!
Our list of recommended desktops for Ubuntu 20.04 Focal Fossa Linux is complemented with links to instructions on how to install each desktop environment, which we hope will turn out to be a very useful feature of this article.
The screenshots included in this guide will give you the first impression of the desktop environments, which will hopefully help you to find the one that suits you most.
You can also see the desktop section of our Things to Install on Ubuntu 20.04 article for even more options.