What I mean is when I first got S21 I turned off sound but was bothered that it kept media volume on. I was told to instead move the Do not disturb option up to the top, and that worked well for a while but now I am still getting notifications with sound from a Facebook message or a Skype message.
When I turn on Do not disturb I want my phone to never make any sounds, unless it's an alarm I have previously set that I know about. For everything else, media, apps, whatever, is there a way I can truly get it to stop giving me sound?
Also, if you get a notification from an app while it's active, check the app settings to ensure the app doesn't have override DND switched on.
On my S21+, do not disturb is 100% silence