I don’t know how I’ve seen people disconnecting from the match and then reconnecting. Or how can you even join an ongoing match?
Ctrl+shift and click invite ur friend
Right now you can only rejoin on friends I believe since there is no in-game rejoin/reconnect button.
This is something TRS would like to add but can’t until they finish writing their own matchmaking system. It’s in the works!
Once my friend, who was playing Crow, disconnected because of internet connection problem, and when rejoined got a role of a Monster