All of these chips are to be built on the second-generation N3E 3nm manufacturing process by TSMC. He estimates that Apple will produce an A18 for the iPhone 16 and 16 Plus, and an A18 Pro for the iPhone 16 Pro and Pro Max. Rather, I think Apple's just setting us up for a future in which every A-series processor comes in two variants: standard and Pro. Perhaps we'll see one in a future iPad or iPhone SE.
Naturally, this implies the existence of a non-Pro A17 processor. Instead of calling it the A17 Bionic, it is named A17 Pro. When Apple introduced the iPhone15 Pro, we took special note of the name change to the A17 processor. Pu's prediction is more nuanced than that, and Apple has already telegraphed a change to the way it names and possibly produces A-series processors.