Okay so if I want everyone to see it (public) I would place it within: mydomain.com/u/<user>summary
So by use of enableDevTools() within the browser console I think user-profile-secondary will be a good place.
I will try now.
Im stuck. How would I get the id of the user I am viewing? Because api.getCurrentUser does the logged in user.
I just put the User ID on plugin outlet: header-contents__after