Never mind, I figured it out. You need to edit /etc/apt/sources.list in an editor like vi (can’t install anything else until this is fixed, and no built-in gui text editor… kind of weird but anyways) to remove the https part and replace with http (PureOS repository not updating?).
Respectfully, I think this should have been explained for those users who aren’t very familiar with Linux. This is the OS that came bundled with a pricey (if worth it) computer.