I find it weird this is only coming out now. I bought my original pair in November 2019, and reported the crackling issue in March 2020. Apple shipped a new pair (not just one, even though I had only had the issue in one of the AirPods) immediately with a pre-paid return envelope to return the original pair. They did put a £170 pre-authorization on my CC which was cancelled the originals were received.
So far the replacement pair has been fine.
So far the replacement pair has been fine.