it’s here: REDBLACKS fans only chat channel
you can make the window smaller by tap/clicking the arrows in top left of the chat window. chat comments are flaggable and you will also notice reactions. keep it respectful please. 
post questions here because i won’t be in your chat channel.
chat icon is at top in header bar next to the search icon. note that if you are in this category when you click it you will get the REDBLACKS chat. if you are in the main categories area you will get a pop up window asking which channel to join. there is also a chat section in the sidebar menu. you can also engage private chats as you would with PMs.