Looking for logging into the Gnome Shell Theme Cant 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 Gnome Shell Theme Cant site. After that you can login as usual with your login credentials.
https://askubuntu.com/questions/70815/cant-login-into-gnome-shell-running-it-always-shows-fallback-mode
https://ubuntuforums.org/showthread.php?t=1942722
https://forums.fedoraforum.org/showthread.php?280639-Icons-and-images-disappeared-can-t-login-in-gnome-shell
https://github.com/daniruiz/flat-remix-gnome/issues/22
https://extensions.gnome.org/extension/19/user-themes/
https://ask.fedoraproject.org/en/question/8078/solved-how-do-i-fix-the-gnome-tweak-tool-shell-theme-selector/
https://www.linuxquestions.org/questions/fedora-35/f18-gnome-shell-user-theme-extension-theme-doesn%27t-change-4175453688/
http://ubuntuhandbook.org/index.php/2017/05/enable-shell-theme-in-gnome-tweak-tool-in-ubuntu/
https://www.wikihow.com/Change-Themes-on-Ubuntu-with-Gnome-Tweak-Tool
https://bugs.launchpad.net/bugs/1732450
https://aur.archlinux.org/packages/yaru-gnome-shell-theme/
https://www.makeuseof.com/tag/install-change-ubuntu-theme/
https://itsfoss.com/ubuntu-community-theme/