Discord isn't enterprise software and I feel really bad for anyone who wants to use it as such. Microsoft Teams is without a doubt the only thing threatening Slack, Discord is an entirely different beast.
Discord has like a $2billion valuation and no exit. Slack had a $24 billion IPO. Consumer software is not as valuable as enterprise.
As a business with employees sure, but as a community? You couldn't have moved everyone to discord faster
The only ones who I haven't heard lament the switch are the ones whose budget Slack used to (and o365 does) cone from.