And I wouldn't pull out a Playstation 4 Pro to do development work. Pro is just a marketing term - and not just in Apple world. "Pro" just means "Premium". That's it.
Also, the fact that you can't use an iPhone for professional work, doesn't mean no one can. I know a lot of 3D artists that use them to sample textures, I know content creators that use them to record video, I even know photographers who use them on their travels when no other camera is around. Just saying. Either way, again, "Pro" is just a marketing term. And regular iPhone 12 Pro is more premium than iPhone 12, ergo the "Pro" moniker.
Playstation were actually used in the past for pro work, as they had the most computing power per $ spend. And you can run Linux on it.
Not sure if this possible with the current generation though (probably not).