Within the caveat a hands-on would be best to prove it, it appears to be both the US and UK versions are identical apart from US version ships with a slide-on folding pin and UK version ships with a UK non-folding slide-on.
The US slide-on is folding pin and looks identical, so I’m guessing it actually slides off.
So I’m predicting yes you’d have a recess on both models but the US you’d have no reason to slide it off as the folding pins is good enough.
This
looks identical to this
Reminds me of the DC cable, most of the smarts is in the cable and they sold different SKUs with different pin ends, and yet the pins probably cost $0.05 each so might as well sell one SKU with all pins. This similarly, sell one Fusion with all the adapters, adds $.
There is the Fusion PD which is larger for intended for Apple, looks bigger, and the front different, but it has wings.