FYI, there was a DDoS attack which impacted Fedora services. It's resolved now.

https://discussion.fedoraproject.org/t/for-your-information-ddos-affecting-most-of-the-fedoraproject-org-services/161568

KDE Linux is a new immutable distro made by KDE themselves, acting as a 'reference implementation' of the Plasma desktop. It is derived from Arch Linux, features a read-only base system, and uses atomic image-based A/B updates.

https://www.omglinux.com/kde-linux-immutable-os/?v2