So I keep my “Who can join me?” setting set to “No one”. However the games I am in still show in my friends’ friend activity. Usually I play in some games alone, making it easy to track down what game I’m in. I had an incident the other night where a couple of my friends joined my game that I really didn’t want them to join. I left immediately as a reaction.
As you can see this is set to “No one”
However, as seen on a separate account on my friends list, the games I play still show up in friend activity.
Other accounts friend activity tab:
These are all games that I’ve played.
Main accounts continue playing tab: