The name "job" was selected because we do not want to constrain this API to just "partial tasks", or tie them too closely to tasks, even though the most common type of job created by Swift concurrency are "partial tasks".
This maintains proposals for changes and user-visible enhancements to the Swift Programming Language. - swift-evolution/nnnn-custom-actor-executors.md at wip-custom-executors · ktoso/swift-evolution