Yes the naming is very confusing but it is understandable that a desktop GPU can be faster than a laptop GPU.

They even did for a generation, with the 10xx series.

But their partners probably weren't happy that the highest end laptop sku was a xx60, so here we are again.

"They did this to intentionally confuse customers."

Same for intel, there is a huge number of people who were asking me why their laptop with a dual-core I7 is slower than a desktop with an I3