An update:
Update All (Super+U):
gnome-terminal -- /bin/sh -c 'echo Updating; sleep 5; sudo apt update; sudo apt full-upgrade; sudo apt dist-upgrade; sudo apt-get upgrade; /home/$USER/.local/bin/gnome-extensions-cli update; sudo fwupdmgr refresh --force; sudo fwupdmgr update; sudo flatpak repair; sudo flatpak update; sudo snap refresh; sudo apt autoremove; sudo apt autoclean; sudo apt purge; sudo apt update --fix-missing; sudo apt install --fix-broken; sleep 30'
See here for setting up Gnome Extensions programmatic updating without having to use extensions.gnome.org.
Screen Off (Super+0 (keypad zero)):
gnome-terminal -- /bin/sh -c 'xset -display $DISPLAY dpms force off > /dev/null 2>&1'