Well this is an interesting approach by Google to counter DNS cache poisoning effectiveness.
https://www.theregister.com/2023/01/19/google_dns_queries/
If your DNS queries LoOk liKE tHIs, it’s not a ransom note, it’s a security improvement.
Remember the days when server up-time was how we measured service availability and bragged about it? This Pi-hole DNS server running on a Debian-loaded mini PC at my home office, is now at 177 days since last reboot, yet is fully patched and running latest version of Pi-hole DNS. Maybe it’s because there are no windows near this mini PC 😏