For the private connection (VPN) options, AARNet does not charge for network traffic. Google will charge customers directly for data egress charges.
At the time of writing this article, Google did not offer a "data egress waiver" for Research & Education organisations in Australia... but you should discuss this with your Google account representative.
For AARNet members and subscription-based customers, internet connectivity to these Australian Google cloud services will be via our Domestic Peering arrangements, so traffic is un-metered for any AARNet charging. Google's data egress charges will still apply.