In the few months I’ve had the Samsung All-in-One my experience has been at least a 50% increase in time spent drying compared to an LG stack I had previously. Also, when complete, if you do get to it within 5 to 10 minutes of finishing, it feels damp, but that clears on its own after 15 to 30 minutes or so if it sitting in the dryer with the door automatically opened.

Very pleased with the experience personally. I am very happy to trade not having to transfer the laundry in the middle with it simply being done when I get back to it a few hours later. YMMV.

Does the Samsung use the same drying method as the LG did?

Older dryers (that needed a vent) were inefficient, but faster at drying. They constantly pumped damp, heated air out of the vent.

Modern condensing dryers keep the heat in the system for a more energy efficient drying cycle but the condensing process is slower.