We set up a bridge between the Lemmy.world General Matrix room and the Public-1 channel on the Lemmy World discord server yesterday. It’s not perfect as emoji reactions aren’t visible and some minor things like how it handles edited messages but other than that it seems to be working well.
Now people on both chat clients can interact with eachother!
Only text channels I believe. There’s a sidebar sort of like the one in the actual Discord app that shows your inbox, SMS, Messenger, etc. Discord servers show up in there, then when you select one it shows you the list of channels as though they’re regular conversations. You can set whether or not they show up in your inbox and/or notify you individually for each channel, and the ones you don’t want you just set to low priority and they’ll be hidden. It’s not a perfect replacement, but if you don’t need voice/streaming it works fine.