Slack was supposed to save us from email. It actually made things worse on its own, and email never went away either. Slack has turned into an unrelenting firehose of noise and distraction, and it lacks the tooling necessary to make it actually serve all the roles it fills in most orgs.
Something slower, more purpose built, with a much richer set of controls around notification processing (read/unread isn’t enough when it’s a work ask) would serve us all much better.