Hello alex_matula,
Thanks for reaching out to the Apple Support Communities. We understand you are experiencing some issues with the microphone on your AirPods. We are happy to help provide some guidance.
If you haven't already tried, we would recommend checking your AirPods to ensure they are clean and there isn't anything obstructing the ports of the AirPods. Take a look at how to clean them here:
How to clean your AirPods, AirPods Pro, AirPods Max, and EarPods
We would also recommend resetting the AirPods if the issue continues to see if it helps at all:
How to reset your AirPods and AirPods Pro
If the issue continues, you can find your nearest service location here: Find Locations or contact Apple Support for additional support options: Get Support
Cheers.