Zoom Microphone issues on Android

Hi, a client of mine uses an android for zoom calls and they need to enable their original sound for our calls, but when they do, their microphone gets super quiet. We tried troubleshooting a little bit and samsung and zoom support suggested that they delete and redownload the zoom app, but this did not work. Does anyone else have this issue? Is this a Zoom or an Android issue? None of my other clients have had this issue. I believe the have the Samsung A15.