Xfce
Xfce is a lightweight, modular desktop environment for Unix-like operating systems, primarily Linux. It is designed to be fast, resource-efficient, and highly configurable while adhering to standards like freedesktop.org specifications. Xfce provides a complete graphical user interface with components such as a window manager, panel, file manager, and settings tools.
Developers should learn or use Xfce when working on systems with limited resources, such as older hardware, embedded devices, or virtual machines, where performance and low memory usage are critical. It is also ideal for users who prefer a minimal, customizable desktop environment without heavy graphical effects, making it popular in server environments with GUI needs or for developers seeking a distraction-free coding setup.