Platform administration
Across every tenant, whether or not you are a member. Metadata only — names, owners, counts and dates. Nothing anybody said in a meeting is here, and every listing is recorded in the audit log against your name.
You are not a platform administrator.
Listing only. A Room's brief, minutes, decisions and transcript stay behind membership — open one by being added to it, not from here.
Platform administration is what lets somebody see this page. It confers no access to any Room's contents — an administrator who needs to read a Room joins it like anybody else. Grants and revokes are written to the audit log against your name, and so are refusals.