I switched from slack to discord for daily communication with my remote team same day I tried it. We liked it for following reasons -
Curiosity and google took me to Slack vs Discord article for the detailed version.
But would like to hear from you?
I like discord's screenshare and voice and general interface & UI. But slack's thread is great if there are many conversations going on. But that is not a problem for a team.
I think Discord has been more popular for gamers and thus young generations. Slack was created for business communication.
I think because Discord was created to target gamers, it does a better job to keep the people stay connected remotely.
I find myself always wanting to turn off notifications and minimize use of Slack as much as possible. It's a distraction factory.