TUXEDO OS
TUXEDO OS is an Ubuntu-based distribution developed in Germany by TUXEDO Computers GmbH, designed and optimised for the company's own range of Linux-friendly personal computers and notebooks. The distribution uses KDE Plasma as the preferred desktop.
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MagOS Linux
MagOS Linux is a Russian desktop-oriented distribution based on ROSA, a distribution that was forked from Mandriva Linux in 2011. It uses the RPM package management.