The game needs a setting that enables the /busy flag before you even get into the game.

Watching one of the first Hololive players start the game for the first time, it's pretty sad to see how they get flooded with whispers and what not. They even had 27 friend request before getting out of the very first cutscene. The entire time they were in the cutscene they kept hearing the friend request sound AND seeing the message popup in the middle of the screen.