You might as well get it even if your PC cant run it, because someday you might have a PC that can. It will look like a game purchase, but the price will be zero. Then navigate to the store and head to GTA 5 right there in the middle. So all you have to do to get your free copy of GTA 5 is to download the Epic Games Store, which many PC users already have because it’s also the Fortnite launcher.
As of Friday morning, however, the store is loading normally.