The last Avengers movie was very focused on the Avengers (duh). Nevertheless, if Marvel Studios had gone crazy and released a six-hour movie, we might have gotten different points of view. How did the 3.5 billion survivors move on with their everyday lives in those five years? The truth is if some kind of realistic representation of the lives of the general public had been shown, Endgame would be much, much darker.
Firstly, the snap was definitely responsible for a whole lot more than half the population. Sudden plane/helicopter/car crashes would have happened all over the world, hospital beds would be left unattended, children (and even babies) would have become parentless, and the list goes on. For all of those who survived the initial consequences, many would be consumed by suicidal thoughts or terrorist-like behaviors. The world would have been more chaotic than ever before.