What is Queued listeners in Laravel, and what role does it play in a real application?

What is Queued listeners in Laravel, and what role does it play in a real application? In Laravel, queued listeners should be understood as part of a larger application architecture rather than as an isolated API call. A listener can be queued when its work is slow and should not delay the original request. A strong understanding includes its purpose, the layer where it belongs, the data or request flow it affects, and the situations where another mechanism may be more appropriate. Practical context: Laravel events represent application occurrences while listeners contain logic that reacts to those occurrences, helping decouple application workflows. The specific focus here is queued listeners: A listener can be queued when its work is slow and should not delay the original request. This question is designed to test not only terminology, but also how the concept fits into Laravel's request, application, database, security, or deployment workflow.