https://ubuntustudio.org/about-ubuntustudio/

Ubuntu Studio is a free and open source operating system, and an official flavor of Ubuntu. It comes preinstalled with a selection of the most common free multimedia applications available, and is configured for best performance for various purposes: Audio, Graphics, Video, Photography and Publishing.

Ubuntu Studio is a community effort, created by volunteers, targeted towards all skill levels, from beginner to pro, and aims to provide all the tools necessary for any type of media content creation.