This is great…
I actually use the Ghostly notifier now (i.e. Octopi - but it looks like a Ghost) and it is set to open a terminal when updates come in.
Though I’m more likely to pre-empt this by running my hideous abbreviation anyway.
First ‘mirrors’ runs ‘pacman-mirrors’ to check, then ‘mup’ updates them…
abbr mup 'sudo pacman-mirrors --fasttrack --api --timeout 3 && pacman-mirrors '
Simply typing ‘up’ after that runs:
sudo pacman -Syu && pamac update --aur --devel && flatpak update