How can I fix my AirPods Pro 2nd gen microphone issues?

Person on the either side complains about muffled voice. At times people have trouble understanding what I say.

Tried all possible workarounds-

1. Tried cleaning the mic
2. Earplugs fit comfortably
3. Tried resetting almost 20 times.
4. Followed proper and standard setup process
5. The drivers are up to date
6. Connected to other devices and the issue persists.
7. Airpods were always fully charged.
8. Tried to switch to different modes, tested with adaptive audio enabled/disabled.
9. Tried in built voice recorder in iPhone and the audio quality is still poor.
10. Tried re-positioning the AirPods in my ears.

Nothing has worked. Please suggest what can be done.

[Re-Titled by Moderator]