Nine to Five Mac, a computer news outlet, recently reported that Apple has removed the “Noise Cancellation During Calls” feature only on the iPhone 13 model.
In-Call Noise Cancellation can be applied from “Settings → Accessibility → Audio/Visual Effects” on iPhone. When this feature is applied, it reduces ambient noise during phone calls.
According to 9to5Mac, Apple’s support team said, “Because noise canceling during calls is not available on the iPhone 13 model, this option does not appear in Settings. .” “The function is not supported.”
This feature was essential on the iPhone 13 and earlier models.
A few weeks ago, iPhone 13 users posted to Reddit and Apple online community support pages saying the feature was gone. At first, many people thought it was just a bug.
However, recently Apple’s support team revealed that the feature is not supported on iPhone 13 and special attention is paid to the background.

Current iPhone 13 users are complaining that the feature is missing and call quality has deteriorated, and that Apple is trying to sell wireless headphones with noise cancellation.
Currently, the only workaround is to select “Microphone Mode” in Control Center while on a FaceTime call, then select and use the Voice Isolation menu.
Apple has yet to issue an official response to this.