Intel’s timeline is tied closely with Apple’s product plans due to Apple’s reliance on Intel chips for their iPhone modems. Previously a Qualcomm customer, Apple and Qualcomm have been at odds due to an ongoing legal battle between the two companies.

from https://www.macrumors.com/2019/02/23/intel--2020-iphones/
https://cdn.macrumors.com/article-new/2017/11/intel5g.jpg