Is it possible to do this either client or server side (preferably server side)?

I'm in a TS where there's a meeting with 500 people and it's very annoying. I don't want to have to toggle this off every meeting then toggle it on afterwards.

As a workaround, I could accept a plugin that quickly toggles the notifications on and off.

(Yes, I know about "self > sound pack > sounds deactivated" but I don't want to change it all the time.