I noticed the reduced ANC with the newer firmware however I didn't bother going to apple until last week when I noticed I was getting some whistling noise at low volume which was annoying. The "genius" I spoke to said that is probably because of the reduced ANC and best to wait it out until the new firmware is released. As I said it has been a few months now and can't they please replace. He said if we give you another set the firmware will update again 🤦♀️ Then I said apple pulled the update a while ago. Anyway he goes to check if that is correct and comes back and says ok, we will replace with a new retail set!
So they did a return on my 5 month old set and gave me a new set. Get home and my right airpod crackled at every opportunity, grrrrrrrr. First thing Saturday morning I took them back and they replaced them again, new ones are perfect and I notice the ANC is working much better. Thankfully I went back the next morning as now the apple store is closed for 2 weeks.........