Thanks for bringing this matter to our attention. Does the issue persists across other applications and even you temporarily disable the Synapse 3 app? PM me the serial number of your device so I can validate its model and check for other model-specific steps to help you address the mic audio problem. Thanks!
Does the microphone quality issue happen to all programs/games and web-based programs that use your microphone (e.g., MS Teams, Messenger calls, etc.)? Please follow the steps in this article and see if it helps. Feel free to send me a PM should you need additional assistance.