Kubuntu is an official flavour of the Ubuntu operating system which uses the KDE Plasma Desktop instead of the Unity graphical environment. Developed by Canonical Ltd
License: Open Source
Kubuntu is known for its stability and long-term support while using the KDE desktop environment, making it suitable for users who prefer a reliable system. In contrast, Manjaro offers a rolling release model with access to the Arch User Repository, appealing to users who want the latest software and high customization.