Comment by Terr_

> I'm not entirely clear on what you expect in this case?

Not parent-poster, but from what I can piece together it sounds like the distinction between Google attesting that:

1. This is the person who currently controls the same e-mail address.

2. The is the person who currently controls a sub-account of the same Google Workspace which was in the past identified by this e-mail address.

> You've sold the domain. Assets associated with the domain are under the control of a new party.

True, but that "control" does not (and should not) automatically mean legal ownership of every kind of internet account that was ever made with that e-mail address.

While the prior-controller has a degree of responsibility, so does Google when it knows that ownership of those other facets were not transferred.

> This feels a lot like complaining that you hired a lawn service and told them to mow at your address, and then didn't update the address or cancel service after you moved.

I feel the analogy need at least three kinds of party: The old/new home owners, the lawn-cutting service, and a marketplace or middleman which is failing to pass along the change in ownership.