They have never been available for AMD laptops before this and there are also, for the first time, 4k screens available on AMD laptops. The title really does hit all the important points I was trying to make, I believe. 2560x1600 is on the smallest of the 3 laptops featured in the article.

Sure but Lenovo has been offering some AMD models with 90Hz 2880x1800 panels for some time now