KDE Linux
KDE Linux is a user-focused, general-purpose Linux distribution. It is built by KDE and it is meant to showcase the best implementation of everything KDE has to offer, using the most advanced technologies.
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Q4OS
Q4OS is a Debian-based desktop Linux distribution offering a choice of a classic-style user interface (Trinity) and a modern desktop environment (KDE Plasma). The project also develops various utilities, such as Desktop Profiler and Software Center, as well as installers for third-party applications.