Unless you have to optimize for the PS4 and PS4 Pro. But, what does ease of development have to do with one being more of a computer than the other?

I'm telling you the difference between a console (or embedded platform) versus a general computing device. There is a blurry line to be sure, but the smartphone and a gaming console are clearly on opposite sides of the line. Consoles have dedicated hardware for antialiasing, texture streaming, etc.

And iPhones have dedicated hardware for cellular, video decoding, decryption, a dedicated GPU, motion detection, face detection, etc....

Are you implementing code for them? Virtually every computing device available (your desktop included) is an SoC.

Yes there are APIs targeting the GPU, the Mx coprocessor, the hardware decoder (https://developer.apple.com/documentation/videotoolbox), etc.

But why is that relevant to how one is a general purpose computer and the other isn’t?