

It is because Apple has been dominant in the premium smartphone market for years, including in China. Huawei have started to make a big dent in that tier in China after eating Apple’s lunch in the lower price categories.
This is a feature that Huawei brought to market before Apple, which was kind of a first. Until recently, they were just following Apple’s innovations. It’s early and I wouldn’t want one now, but I wouldn’t be surprised if smartphones-that-fold-out-into-tablets was the standard by the end of the decade.
The bathroom in my LGS literally has free deodorant openly available for use, and the owner reminds everyone whenever the store is really packed for an event. Unfortunately some people still do not get the hint.