I wonder if, in our replies, we have assumed too much understanding?
While photography is simple enough, at least apparently, there are a lot of much more complex factors involved than people imagine which all contribute to the way a finished image looks. So using a film emulator with a digital photo may make something that sort-of looks a bit like a film photo, but just using the software in the camera or phone will make a poor job at best. And a big part of all those fantastic monochrome and colour pictures you have seen created on film was down to hand printing the image.
There's another factor too that your question to Dale almost touches upon - the issue of focal length and sensor size.
So when Dale mentioned 600mm and 400mm, were you aware he was talking about lenses. The lenses we use profoundly affect how our pictures look, and it's not just magnification of distant objects or wide angles fitting a lot in, but it's also the actual choice of lens and the aperture we choose (the size of the hole light shines through). On top of that, the physical size of the sensor or film that we focus the light on also makes a difference.
A phone has a tiny sensor, and this affects how a phone picture looks. While it's possible to fake the behaviour of a larger sensor and different lens type in software, it will usually look like a fake - like the film emulators.
In my case, I choose certain lenses and camera types because they give the image a sense of depth, like you can almost step into the picture.
This is 'why not' a phone camera.