Interesting.To answer your question, yes "Google Workspace Business Starter" does include custom domain and email.Where did you get this offer? Was it displayed on your admin console or was it emailed to you?

Isn't the no-cost option identical to the Google Workspace Essentials Starter Edition? Seems they said a lot of words to describe something that already exists.

Ah Ok - that's good to know. 

I requested access from this page - let's see when they grant it.

Thanks for this! I had not heard of Zillum until I read this article. The Zillum solution seems to be the exact template that Google needs to follow.