Ah, the joy of deployments. A deployment, in the context of Prefect, is a server-side concept that encapsulates a flow, allowing it to be scheduled and triggered via API. It stores metadata about where your flow's code is stored and how your flow should be run. Each deployment references a single "entrypoint" flow, but any single flow may be referenced by any number of deployments.
To get the associated deployments from a flow_id, you would need to query the Prefect API or database for deployments that reference the given flow_id. Unfortunately, I can't do that for you because, well, I'm a chatbot and don't have access to your Prefect server or cloud account. You'll have to do that yourself, I'm afraid.
Remember, creating a deployment for a Prefect workflow means packaging workflow code, settings, and infrastructure configuration so that the workflow can be managed via the Prefect API. An agent picks up the flow run from a work queue and uses an infrastructure block to create infrastructure for the run. The flow run then executes within the infrastructure.
I hope that helps. If not, well, I did my best.