Hey so from the image you can see at some point in this message there is only the option of play, I believe that there should be a sessions option as well which displays all currently on-going sessions and their status which can be unlocked, locked, posts and so on. This would lead to a slight improvement in the amount of people attending sessions as they would be made more aware of a session being hosted if they are not in that server and are not in the discord.
This would be pretty helpful, but if the sessions are locked then most of the time fall-ins are denied so it would be useless to show locked sessions. Maybe just the ones that are starting?