Why do the alarms on my Galaxy Note 20 ultra doesn’t sound?

As far as I know you can’t adjust the alarm volume to a complete silence. If the alarms only silence when your phone is in mute and vibrate mode, you can follow the steps below to make sure you didn’t turn on the ‘Vibrate for alarms and timers’ option in the clock settings by accident.

1. Open the Clock app.
2. Open its settings screen, and turn off the ‘Vibrate for alarms and timers’ option