A more interesting artifact is that the round trip from the link somehow altered the Ubuntu preferred repository for updates from a US main source to:
aze.archive.ubuntu.com
Azerbaijan. Really ? No, I did not select getting my software updates from Azerbiajan...
I see there’s an Ubuntu update out now, addressing, and one assumes, attempting to fix the backdoor or the hack that enables spoofing the repository (and thus kernel) access.
What’s in your /etc/resolv.conf file?