With Cloud Run for Anthos you can use Docker Hub cloud.google.com/kuberun/docs/depl... but note the warning: "As of November 1, 2020, Docker Hub rate limits apply to unauthenticated or authenticated pull requests on the Docker Free plan. To avoid disruptions and have greater control over your software supply chain, you can migrate your dependencies to Container Registry or Artifact Registry."
For Cloud Run (Fully Managed) (the typical "Cloud Run" experience), you must use Cloud Run or Artifact Registry.
With Cloud Build you can use Docker Hub cloud.google.com/build/docs/intera....
With Cloud Run for Anthos you can use Docker Hub cloud.google.com/kuberun/docs/depl... but note the warning: "As of November 1, 2020, Docker Hub rate limits apply to unauthenticated or authenticated pull requests on the Docker Free plan. To avoid disruptions and have greater control over your software supply chain, you can migrate your dependencies to Container Registry or Artifact Registry."
For Cloud Run (Fully Managed) (the typical "Cloud Run" experience), you must use Cloud Run or Artifact Registry.
Thanks @glasnt . You've been a great help!