I see all zeros in the Admin > Resources > Capacity tab for any of my Environments, including my Production Environment. When I drill down to Capacity > Dataverse, my environments are listed, and Production Environment is shown as a PAYG (correct), with zeros. When I drill down further, using the 'little graph' Details icon, I see Table- and File- Usage by table, but the tables are all system-level tables -- not anything I've created.
Meanwhile, I can get aggregate Table- and File-Capacity Usage data and billing charges from Azure (via microsoftazuresponsorships.com), but no detail. I understand I can't use the Cost Management tools in Azure, because of the Sponsorship factor, but I'm surprised that Power Platform Admin won't show me any information. What am I missing?