See a notification number on the “envelope” at the top right? When you click it, it should give you a drop down with a brief tidbit as to what it’s about... if you want to, you can even interact with it directly in the drop-down.
However, if you want more context and click on the specific notification from the drop-down, it will take you to the relevant target details... HOWEVER you still need to tab over to the “Updates” tab to see the full conversation.