Even if you take that article at face value (I don’t). Let’s look at chip volumes
1. Apple uses the same processors (the Mx series) on Macs and high end and midrange iPads.
2. Looking more broadly, Apple uses slightly modified versions of the same ARM chip in Macs, iPads, iPhones, set top boxes and monitors (yes the newest Apple monitor has the same processor as an iPhone 11)
Just taking 1 and two into account, Apple probably sells between 250 - 300 million computing devices with high end ARM chips.
Now let’s add the processors that Apple sells in the Watch and AirPods that are also ARM variants.