Was upgrading to Zorin OS 17 Pro, but the problem came when it was stuck on this screen:
Do you have Brave Browser or Google-Chrome browser installed?
Did you check your sources and run
sudo apt update && sudo apt dist-upgrade
prior to running the Zorin Upgrader?
Nuh uh.
I did have a deb. package, but never ran it before.
(EDIT: had to reinstall the Zorin system to fix the issue)