Why do we need terminable middleware?

Question

Laravel

I'm reading the documentation and I came across TERMINABLE MIDDLEWARE, I can't figure out what it is.

Answer 1

Sometimes a middleware may need to do some work after the HTTP response has already been sent to the browser. For example, the "session" middleware included with Laravel writes the session data to storage after the response has been sent to the browser. To accomplish this, define the middleware as "terminable" by adding a terminate method to the middleware.

What's incomprehensible here? Sometimes some actions need to be performed after the response is given to the browser (for example, to perform some resource-intensive operations that are not directly related to the response) - this is what they are used for.