Old workaround possible for muting

On my Fairphone 4, Android 11, I ran into the known issue with Sound Mode -> Mute that you reported to Google in https://issuetracker.google.com/issues/205205662 (you can add the Fairphone 4 to the list of affected phones). I furthermore noticed that this old workaround on Reddit reliably sets the phone to Silent on my device:

1. Set DND Mode "No interruptions"
2. (Immediately) set DND Mode "Priority"
3. Wait 50 ms
4. Set DND Mode "Allow All"

Not sure if it works on the other phones, but I found it worth mentioning.