Pixel 9 design language is iPhone 4 design language from 2010 -- which was original iPhone design language from 2005, that didn't ship!
Apple calling back to what was considered their most iconic design language for the iPhone (and now iPads) long before others imitated it, doesn't mean Apple is now copying the imitators.
But those were Apple having fun with Sony fanfiction applied to an earlier Apple design ... turns out the iPhone 4 language was in their design repertoire in 2005, before even the original iphone shipped:
Apple calling back to what was considered their most iconic design language for the iPhone (and now iPads) long before others imitated it, doesn't mean Apple is now copying the imitators.
https://www.core77.com/posts/16817/core77-speaks-with-jonath...
This remains widely regarded as the most significant design since dropping the keyboard.
The plot on that design thickens, Samsung claimed Apple copied Sony:
https://www.theverge.com/2012/7/26/3189309/apple-sony-iphone...
But those were Apple having fun with Sony fanfiction applied to an earlier Apple design ... turns out the iPhone 4 language was in their design repertoire in 2005, before even the original iphone shipped:
https://www.theverge.com/2012/7/30/3201162/apple-refutes-cla...
I seem to recall they couldn't do the design earlier due to fabrication and materials constraints.