sudo apt install gnome-shell-extension-manager

• https://extensions.gnome.org/extension/3010/system-monitor-next/
• https://extensions.gnome.org/extension/6/applications-menu/
• https://extensions.gnome.org/extension/779/clipboard-indicator/
• https://ubuntuhandbook.org/index.php/2022/11/desktop-icons-gtk4-port-ubuntu/

https://askubuntu.com/a/992351

$ cat ~/.local/share/applications/hibiscus.desktop
[Desktop Entry]
Type=Application
Encoding=UTF-8
Name=Hibiscus
Comment=Hibiscus
Exec=/media/data_ext/programme/jameica/jameica.sh
Icon=/media/data_ext/programme/jameica/jameica-icon.png
Terminal=false

chmod a+x ~/.local/share/applications/hibiscus.desktop
gio set ~/.local/share/applications/hibiscus.desktop "metadata::trusted" true

$ gsettings get org.gnome.shell favorite-apps
['firefox_firefox.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Terminal.desktop', 'org.gnome.Settings.desktop', 'org.gnome.TextEditor.desktop', 'code.desktop', 'keepass2.desktop']
frank@frank-u24:~ 
$ gsettings set org.gnome.shell favorite-apps "['firefox_firefox.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Terminal.desktop', 'org.gnome.Settings.desktop', 'org.gnome.TextEditor.desktop', 'code.desktop', 'keepass2.desktop','hibiscus.desktop']"