Do people still use Discord or Slack to connect with the UE4 community?

A couple of years ago when I was learning UE4 there was a great online realtime chat resource. It was found at either Slack or Discord. Does this still exist or is there a better one now ? still active with many thousands of users

So that link is a Discord forum not a Slack forum. It’s a little confusing, Maybe they use to be on Slack and move to Discord, so they kept the name ?

yep, that’s pretty much it