I've seen withgoogle.com before. withgoogle.com is supposed to invoke collaboration, but with google's reputation as a cold, impersonal corporation where everything is automated and there's hardly ever any technical support, I just mentally shrug it off when I see it.

and we also have abc.xyz and domains.google and other domain shenanigans that I forget about.

I just learned that alphabet.com is different company. I wonder if they've clung to the domain as tightly as nissan.com has clung to theirs or if google doesn't want it that much.