GNOME is probably the most popular desktop environment among Linux users, Many organizations makes GNOME as a main flavor for their linux distribution. It provides extensions supports which make it more customizable.
2. KDE Plasma
KDE is a well-known, powerful and highly customizable desktop environment, designed to offer Linux desktop users absolute control over their desktop. The task manager on Plasma 5 shows live window previews upon hovering the mouse over an active program name. Other popular desktop environments have started to add this feature.
It is one of the most popular and best desktop environments which comes as the default environment on the Linux Mint.
It is an extension of the GNOME 2 desktop. Compared to KDE, GNOME, and Cinnamon, MATE is a lightweight desktop environment. It is also the default desktop environment for Linux Mint along side Cinnamon desktop.
This desktop environment aimed for machines with limited hardware. Xfce lacks the animations and special effects. But it include all the necessary components and features. Overall, it’s one of the most popular lightweight desktop environment.