Some AMD laptops are waiting on later kernel versions with patches to the Raven/Renoir Audio Co-Processor for the internal digital microphone array
Amd Renoir CPU: Microphone not working on Kernel 5.10.5
If information from that discussion does not help with your system
I suggest you start a new topic and post system information - inxi -Faz and ALSA information - sudo alsa-info.sh --upload