I gotta say I’m still patient even though I’ve had 15 various distros already broken because of some reason - mainly lack of my knowledge of course.
Currently however I experience lack of desktop after installed a desktop widget (among others KDE widgets). Widget name: Webslice - it has something to do with Process 4930: plasmawindowed and Library: libQt5Qml.
I have already done the following:
- removed kde config as suggested (rm -rf .kde/*)
- reinstalled plasma and kdebase
- restored my full backup
All these haven’t fixed my desktop. On top of that I’m getting now some strange msgs from Pamac regarding duplicated DB entries and from KSystemLog: Plasmashell  segfault at 7f31842fd848 ip 00007f31b038d902 sp 00007ffdf893e460 error 7 in libKF5CoreAddons.so.5.56.0[7f31b036f000+5f000].
What can you advise me with and how should I fix it?
Thanks a lot.