It's still the worst place for light to come from regardless if its the primary light source or fill.
If that were true, no one would use ring lights. But they do.
when a ring light is used the light is coming from top, bottom, right and left of the lens position creating a unique look entirely different than the look from a pop up flash. you cant be serious with that post...
Architects same as the Great Chef , who can use the Chicken's S___ to make a great Chicken Salads"---Yes, Some time Useless Pop-up flash can be the Life saving Photos for the photographers like us, if we know how to use them.
PS, All Photos are no Post processing , except reduce the size to fit below 1 MB.
with all due deference to your ingenuity surapon, the quality of light from your fill flash is still poor. you can season chicken S___ as much as you like....its still chicken S___ that you are eating.
regardless of how you spin it, quality of light has a great deal with the direction it is coming from. directly over the lens is about the least desirable position for light to come from. size, intensity and ability to shape your light source also contribute to quality of light and pop up flash fails to achieve any merit in any of these criteria.
photography quite literally translates to "writing with light". understanding quality of light and how to manipulate it is paramount for professional photography. a pop up flash is so far on the other side of desirable that its hard to put into words. put it this way...once one is introduced to lighting, lesson #1 is get the light off the camera.
sry, i just can't fathom anyone that is remotely serious about lighting defending a pop up flash on a professional level body.