The story of GTA V is quite lengthy. It can take you a good number of hours to complete, depending on your playstyle and how much you explore the side missions and activities.
GTA V is purely fictional. The developers created an imaginative world and plot for the game. There's no real-life basis for it. It's all about providing an entertaining and immersive gaming experience through a fictional setting.
The length of the GTA V story varies. If you just focus on the main storyline and don't get sidetracked, it might take you around 25 hours. However, if you want to fully immerse yourself and do everything the game has to offer, it could easily be more than 70 hours.
Overall, the story of GTA V is substantial. Depending on your playstyle and how much you explore, it could take anywhere from 25 to 35 hours to finish the main storyline.