lxqt
also: LXDE-Qt, LXQt desktop environment
LXQt is a lightweight, modern desktop environment built on Qt that provides a minimal, fast graphical interface for Linux systems, ideal for older hardware or users preferring simplicity.
LXQt is a desktop environment combining the lightweight LXDE project with the Qt toolkit, offering a complete graphical desktop with window manager, file browser, and utilities without heavy resource demands.
It features a clean, modern interface while remaining extremely efficient—typically using 300–500 MB of RAM compared to 1–2 GB for GNOME or KDE. LXQt includes components like lxqt-panel, lxqt-session, and pcmanfm-qt (file manager) that work together seamlessly.
Example: A user on a 10-year-old laptop with 2 GB RAM can install LXQt and enjoy a responsive desktop with applications like Firefox and a text editor, whereas GNOME would crawl. LXQt distributions include Lubuntu (Ubuntu variant) and LXQt-based Fedora spins.