Just spotted a new DAW in the Arch User Repository (I didn't try it but from the screenshots it looks rather good).
Description from the site:
Zrythm is built using C and the GTK+3 toolkit and borrows ideas, concepts and code from other projects such as Ardour, Jalv, Bitwig and Cubase. It is built with the intention to provide GNU/Linux users a full-featured alternative to proprietary DAWs and offers a unique approach to workflow that other GNU/Linux DAWs lack. Zrythm is free software licensed under the GPLv3+ and its source code is available on GitLab.
Easy to install - Packages are available for Arch Linux, Debian, Ubuntu and Fedora based GNU/Linux distros. See Installation for installation instructions.
Smart features - Automation curves, built-in LFOs and envelopes for automation, chord track to assist with chord progressions, and other cool features to make our life easier so we can focus on what matters - making music.
Clean interface - Making art should be a nice experience. Zrythm tries to keep the interface clean and pleasant to work with with a color scheme that is easy on the eyes and hideable docks.