Hello,
Thank you for posting in the Microsoft community forum.
May I know if this symptom only occurs when the system plays email and screenshot notifications? Have you tried connecting this device to another audio device for testing?
It may be that some applications may have conflicting calls to the audio device. It is recommended that you temporarily close the applications that may control the audio Settings and run only the necessary applications for testing.
In addition, try a clean boot to see if the anomaly still exists.
How to perform a clean boot in Windows - Microsoft Support
I hope this helps.
Best regards
Jacen