Earlier quoted context omitted.
AWS is comparable to GCP revenue not Google Cloud revenue, which includes GSuite (same with Azure whose revenue is mainly Office 365).
AWS includes collaboration tools like WorkDocs and Chime as well so comparison is still like for like. Just because each vendor has different strengths (and leverages them differently) doesn't negate the broad comparison.
Even though AWS is 'purer' relative to GCP's and Azure's percentages of productivity revenues in their numbers, I don't think we can extrapolate much more than that from the numbers anyways.