Dear Indah Citra!
Welcome to the Microsoft Community!
I understand your frustration regarding the microphone issue in the Copilot. I have tested it and can confirm that the microphone problem does exist. There are also other users who have reported this issue as well.
But the community support team and the Copilot development team are not the same team. Please click on your profile icon in the top right corner of the Copilot app, then select the feedback option to report this issue. Your input will help the team understand the problem better.
Thank you for your understanding and support. I hope the Copilot team can resolve this issue quickly! If you have any other questions or need further assistance, please feel free to ask.
Best regards,
Yang.Z - MSFT | Microsoft Community Support Specialist