Xfce is described as '(pronounced as four individual letters) is a free software desktop environment for Unix and other Unix-like platforms, such as Linux, Solaris and BSD. It aims to be fast and lightweight, while still being visually appealing and easy to use' and is a very popular desktop environment in the os & utilities category. There are more than 25 alternatives to Xfce for a variety of platforms, including Linux, BSD, Windows, Mac and Linux Mobile apps. The best Xfce alternative is KDE Plasma, which is both free and Open Source. Other great apps like Xfce are GNOME, Cinnamon, Noctalia and MATE.
Plasma is a cross-device work environment by the KDE Community where trust is put on the user's capacity to best define their own workflow and preferences.
An easy and elegant way to use your computer, GNOME is designed to help you have the best possible computing experience.
Noctalia is a beautiful, minimal desktop shell for Wayland built with Quickshell. It’s designed with a “quiet by design” philosophy, providing a complete desktop experience that stays out of your way.
MATE is a good alternative to XFCE because it is similarly light on system resources (runs well on computers that aren't the fastest/newest) but MATE has slightly more intuitive configuration for the desktop appearance (e.g. moving icons on panels, making panels transparent).
Mate is light on system resources. Perhaps not as light as XFCE, but still good on old computers. Additionally, the Mate desktop panels are more customizable than on XFCE. Under-rated desktop environment.
It's like if it's XFCE's Qt-based sibling
The "Lightweight X11 Desktop Environment" is an extremely fast-performing and energy-saving desktop environment.
This dektop enovriment for older pc and arm pc desktop enovriment
The Budgie Desktop is a feature-rich, modern desktop designed to keep out the way of the user. It consists of a number of components to provide a more complete desktop experience.
Cairo is a desktop environment for Windows. Its goal is to develop a desktop experience that increases productivity and advances current technology standards.
Cairo Shell is for Windows, XFCE is for Windows
Enlightenment is a Window Manager, Compositor and Minimal Desktop for Linux (the primary platform), BSD and any other compatible UNIX system.
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Whilst KDE and XFCE are both highly customisable, KDE is much more prone to bugs and is also uses a significantly larger amount of resources relative to XFCE.