Looking for logging into the Kubuntu Screen site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Kubuntu Screen site. After that you can login as usual with your login credentials.
https://askubuntu.com/questions/871031/how-to-change-login-screen-sddm-on-kde-plasma-5
https://store.kde.org/browse/cat/101/
https://forum.ubuntuusers.de/topic/kdm-login-screen-aendern/
https://bugs.launchpad.net/bugs/1563048
https://ubuntuforums.org/showthread.php?t=2265806
https://ubuntuforums.org/showthread.php?t=868431
https://forums.linuxmint.com/viewtopic.php?t=247914
https://forum.manjaro.org/t/hintergrund-des-login-screens-anpassen/2166
https://www.reddit.com/r/kde/comments/7joica/kde_login_screen_not_reacting_to_input/
https://www.linuxquestions.org/questions/ubuntu-63/%5Bkubuntu%5D-no-login-screen-after-4-15-0-29-kernel-upgrade-4175634708/
https://ask.fedoraproject.org/en/question/84668/how-to-change-kde-login-background-image/
https://pointieststick.com/2018/04/29/this-week-in-usability-productivity-part-16-new-lock-and-login-screens/
https://superuser.com/questions/1257309/how-to-remove-a-user-from-sddm-login-window