Hey @hookbeak - definitely understand where you're coming from here, setting up these bulk operations can be a little tricky at first for sure. From what I can see based on the response body you shared, your Bulk Operation query mutation ran successfully, so that's good news!
You are totally correct that it will create a JSONL file containing the relevant information your Bulk Operation surfaced - you'll just need to run another query in order to retrieve it. This is generally done by setting up a webhook subscription for the "BULK_OPERATIONS_FINISH" topic, which will send you a webhook once the operation has been completed with a link to that JSONL file.
However, if this is your most recent or only Bulk Operations Query, you can also surface the URL to the JSONL file directly in your API Client using this GraphQL query: