9to5Mac notes that Apple has now addressed potential issues that some AirPods Pro owners have experienced in two support documents which you can find here and here. You can find details on the issues at the Apple Support Forum.
I won’t go into all the details, but the first doc tells you what to do “if your AirPods Pro make crackling or static sounds.” The second tells what to do “If Active Noise Cancellation isn’t working as expected on your AirPods Pro.”