Once it happened to me because 6 years prior I'd made a change thinking 'hah. That makes more sense' and then things changed under me and I had to read journalctl in a tty. Low key enjoyed dealing with it. But here's the thing: most ppl are dead at that point. No idea what to do. Arch is for nerds.

Edit: if you also read my other post about iptables, this is a completely different thing. I had two issues.