Alot of what you have posted above about the Quran is incorrect. Can I ask your source for the above please
And the Hafs recitation is based on the Qureishi dialect which was the dialect of the Prophet peace be upon him and most of the companions at the time.
There are no major differences in the meaning even within the different dialects that the Quran was revealed in to accommodate for this. How the verses are interpreted can vary but these are scholarly differences and each will have their explanations for that.
There are many specialists including one In my own wider family who has studies extensively and can read the Quran in the 10 dialects and can tell you that there are no major differences in the meaning.