Comment by netzone

Or you work at a company with no significant secrets that could potentially be shared through chatting. Priorities; why spend time and effort on some on-site solution when there's really nothing to gain security wise unless you have secrets? You won't be sharing passwords through Slack or Discord in any case, that's for a password manager, so you're really left with trade secrets, and why would there be trade secrets in a Slack channel for a web development company?