The compact HP WD combo from LG is an entirely different beast, though.
That LG uses the Centum design. That design isn't new per se, LG used to use it on their very large compact FLs. That drum is just above 80l in volume, a good 10-20% more that usual in those compact FLs.
The design has however been mostly phased out due to price and complexity.
The big reason these use it is an inherent design feature. Instead of having a drum in a tub with the suspension connected to the tub, the tub is attached to the cabinet directly.
The drum is suspended via a few structural elements directly, moving freely in the tub. So it's not the entire tub unit swinging around, just the drum in the tub.
That allows the heatpump components to be fixed to the tub, allowing for more space for those components.
You can see the HUGE gap between drum and tub and how cramped everything else is.
These machines are known to suffer balancing issues after some time especially with overloading.
Other reviews suggest that overloading can cause items to move past the drum into the tub clogging the drain causing expensive service calls.
Given there is no such full size architecture from LG, I think the design is inherently different on the model this thread is about.
That will just be a normal, fully suspended tub/drum unit. As it's a 27" model there is probably enough extra space for the compressor, fan and heat exchanger.
Interestingly, I haven't seen LG make a claim about dry to dry time. If they manage similar times to the GE unit WITHOUT the extra height, I would be pretty impressed.