Techincally all the steelbooks that are "embossed" are really just debossed meaning the metal is pressed in except in certain spots that stay where they were to begin with. Like if you pressed your hand into some sand at the beach. You "debossed" the sand down and the parts in-between your fingers didn't move up to become "embossed". It just stayed where it was to begin with so it seems higher than the other areas around it.
The Godzilla Metalpak is truly embossed because it has parts that rise up compared to the original surface. Or slipcovers that have raised letters. Those are embossed. You don't deboss the slipcovers to make those letters stand up.