I’ve just noticed that KDE Plasma 6.6.4 KVM Guest installs with no issues. At same time when I attempt straight forward setup Cosmis 1.0.10/11 Calamares installer constantly crashes. If I try in KDE Plasma to run $ pacman -S cosmic cosmic-session dependencies conflict comes up forcing me to erase one package ( kind of mesa-** not sure about exact name ) . Cosmic installs and doesn’t show any visible issues as well as re-login to KDE Plasma still behaves smoothly at first glance of cource.