For anyone that runs arm8 Manjaro 21.04 is out.
It took me 2 minutes to download the KDE version for my Pi400.
Manjaro ARM 21.04 released!
Manjaro ARM 21.04 released! We are proud to announce the release of Manjaro ARM 21.04, which will soon be available via manjaro.org. Currently we have download images for: Raspberry Pi 4, Rock Pi 4C, RockPro64, Khadas Vim 2, Khadas Vim 3, Odroid N2, Pinebook and the Pinebook Pro. Manjaro ARM...
forum.manjaro.org
It took me 2 minutes to download the KDE version for my Pi400.