$ ssh -o VerifyHostKeyDNS=yes github.com                                                                                                                                          
    The authenticity of host 'github.com (140.82.121.3)' can't be established.
    ED25519 key fingerprint is SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU.
    No matching host key fingerprint found in DNS.

They didn't update their DNS SSHFP records? https://en.wikipedia.org/wiki/SSHFP_record

What a security nightmare…