Basically, you have to fork the chat modules and change the chat font, I don’t entirely know where it is because im not in studio right now
To fork the chat:
Press play and open the Chat (the service, not the in game chat) and copy all the items inside the Chat, then stop and paste them into Chat
To change the font, fork the chat and go into ClientChatModules and Chat Settings and go to line 39 and 40:
and change both of these to your font