Looking for logging into the Plasma 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 Plasma Screen site. After that you can login as usual with your login credentials.
https://forum.kde.org/viewtopic.php%3Ff%3D67%26t%3D136319
https://store.kde.org/browse/cat/101/
https://askubuntu.com/questions/871031/how-to-change-login-screen-sddm-on-kde-plasma-5
https://wiki.archlinux.org/index.php/SDDM
https://bbs.archlinux.org/viewtopic.php%3Fid%3D221121
https://www.reddit.com/r/archlinux/comments/7os6am/how_do_i_get_to_terminal_from_kde_plasma_login/
https://www.youtube.com/watch%3Fv%3DUTnTti8XUJo
https://www.phoronix.com/scan.php%3Fpage%3Dnews_item%26px%3DKDE-Plasma-5.15-Better-Login
https://github.com/avivace/breeze2-sddm-theme
https://www.kubuntuforums.net/showthread.php/72780-Keyboard-displayed-on-login-screen
https://forums.opensuse.org/showthread.php/532210-KDE-Plasma-lock-screen-not-showing-user
https://www.linux-apps.com/p/1216681/
https://forums.linuxmint.com/viewtopic.php%3Ft%3D247914