Comment by opencl

There are already a bunch of native Teams/Slack/etc.-like applications. Matrix has a good number of native clients[1]. There's Ripcord[2] which supports both Slack and Discord. There's Matterhorn[3] for Mattermost.

[1] https://matrix.org/clients/

[2] https://cancel.fm/ripcord/

[3] https://github.com/matterhorn-chat/matterhorn