I wonder if there is a market for making a clone of slack, which syncs all data from slack, simply for use when slack is down.
Big companies could pay monthly for "slack redundancy" from a third party.
Big companies could pay monthly for "slack redundancy" from a third party.
So, when Slack is down, it's actually a nice "everybody is offline: either take some time off or work focused on whatever you need to work on"... which is a nice thing to experience from time to time during regular business hours.
Ideally you could discuss that the notifications are making you anxious and less productive and your employee could accommodate that. If your employer is not interested in helping you become more productive then maybe look somewhere else? You don't have to settle. Your mental health is paramount.
If I text someone and they reply within a day, that's fine to me, and it's fine to any of my colleagues. If it takes more than a day, I'll ping them again, and everyone can still chill.