I did a quick look through every 747 layout listed at https://www.seatguru.com/charts/longhaul_economy.php

I don't see any 3-5-3s - everyone was a 3-4-3. If anyone was doing it, they've since retired the plane/layout.

In recent history, Delta only flew 747s between 2009 and 2018 (they were originally Northwest planes, acquired in the merger). I can't find any evidence that any of them ever had 3-5-3 seating.