If you add to widgets it will work then.I just tried and I couldn't
Glad to see your post before I try to do it because it would drive me crazy thinking it was only my iPhone.
Have you added phone app as a widget? If so that's why it works.Sorry before i tried from phone app, just tested again 3d touch on phone app, 4 fav contact listed, can make call to all 4.
I can't access my most recent notes from the notes widget while 3D pressing as well. However I can touch the quick shortcut to go home via the maps app.
Same deal as the phone app. Adding notes as a widget makes the 3D menu work.