I would swap out 2 things on the menu.
Could you guys be so kind to leave the chatbox open at start of the game. and make closing it optional. Why? because everytime someone talks to you you will never notice it unless you personaly open that chatbox. So it would be simpler to give it a closing option then keeping it closed.
Same thing here at the top of the menu screen you have the notification box. Either make it pop open when you recieve a invite so it stands more out. Or make it closable by the user itself instead of beeing closed at the start.
As a game designer myself i know this only takes like 15 min literally to swap this over.