Interesting in that thread that they mention that Google Cloud’s DNS service uses Google Domains NS records, and they haven’t said whether that is going away or not. I only use Google Cloud for personal stuff, but I know that I would cry if AWS suddenly said “there’s no longer a way to get public DNS names for your services through our tooling” at work.
Cloud DNS is just nameservers. Google Domains is a registrar. Two very different things. There is no reason for Cloud DNS to be affected by Domains going away.
