@mercifulboss @shibijm @F1nny @Billygoat32 @Volondil
finally got a Fedora 40 KDE running for me and was able to find a workaround that actually worked smoothly for me and that does nod need a gnome library to be installed. Please try to use kwallet5 as the backend store for the password encryption. I have documented this here: Password Management Error - #2 by system