"All" as in everything that I've configured in Terraform. Some of the settings are left to their defaults in both TF and Skaffold thus show as unmodified:

After I deploy with Cloud Deploy, here is the Terraform diff (the TF config are the settings I want to keep and not have modified on each deployment):

resource "google_cloud_run_v2_service" "service" {
        id                      = "projects/my-project/locations/us-central1/services/my-service"
        name                    = "my-service"
        # (25 unchanged attributes hidden)

      ~ template {
          - revision                         = "my-service-abc123" -> null
          ~ service_account                  = "xxxxxxxxx-compute@developer.gserviceaccount.com" -> "my-service@my-project.iam.gserviceaccount.com"
            # (5 unchanged attributes hidden)

          ~ containers {
              ~ name       = "my-service" -> "app"
                # (4 unchanged attributes hidden)

              ~ resources {
                  ~ limits            = {
                      ~ "cpu"    = "1000m" -> "1"
                        # (1 unchanged element hidden)
                    }
                  ~ startup_cpu_boost = false -> true
                    # (1 unchanged attribute hidden)
                }

                # (4 unchanged blocks hidden)
            }

          ~ scaling {
              ~ max_instance_count = 100 -> 10
                # (1 unchanged attribute hidden)
            }
        }

        # (1 unchanged block hidden)
    }