Tastentöne Fenix 8

On English (sorry) language forum - Fenix 8 - Disable Activity Sounds - fēnix 8 Series - Wearables - Garmin Forums

Garmin-Laurie said:

Hello, I am sorry to hear you are having trouble with the sound settings. You should be able to Mute all sounds both during and outside of activities. 

This appears in 2 places. 

1. Hold the Middle left button
2. scroll down and select Watch Settings
3. Scroll down and select Sound a Vibe
4. Select Volume
5. Select Mute all

For During activity: 

1. Hold the Middle left button
2. scroll down and select Watch Settings
3. Scroll down and select Focus Modes
4. Select Activity
5. Scroll down and select Sound and Vibe
6. Select Volume
7. Select Mute All