Laravel - get last row using whereHas

Question

I am trying to get the time \"created_at\" for the last user activity, I have the model User, and UserActivity.
I want to get the last user act

Answer 1

main structure: model::latest()->get()

  $latest_activites = User::with('activites')
                    ->where("activites",function($query){
                     .
                     .
                     .
                     .
            })->latest()->get();