Airpods Pro ANC getting worse

I enjoyed complete silence (almost) provided by airpods pro for the first few months from feb 2020.

however, the efficiency of the ANC degraded noticeably since may 2020, and it is getting worse after upgrading to 3E751.

No active noise cancelling at all with the 3E 751 firmware. I can clearly hear everything around me even when i am playing songs with my airpods. I have tried every method suggested by the apple communist, and changed to a new pair of airpods at the apple store yesterday, things didn’t get any better….. how disappointing is it.

As a classical musician, i have to work with my ears all day long, and I really have to let my ear rest after performing and practicing. I can’t understand why apple would degrade the ANC just to fit those ppl don’t need ANC.

adjustable ANC level maybe the only solution. Without a true noise cancelling function, this product is kinda wasting my money