Ever since Apple has gone all in developing custom silicon chips like their A-series processors as well as companion chips like connectivity modules, an image sensor, display modules, and several others they don’t talk about publicly, other companies have followed suit.
I often get asked why companies feel the need to start making their chips when there are often great options from companies like Qualcomm, Intel, NVIDIA, and AMD, and many other semiconductor companies who have deep expertise in this area. The short answer is more and more companies are going to want more control over specific experiences with their products and therefore will want to have control over how those experiences are differentiated.