Free Trial vs Full Version download

I feel like I saw this around the forums but I can't find the post again.

If someone downloads the free trial version of the game, and when the trial is over, would they have to download the full version afterwards?

Such as, say someone's free trial ran out, and they've purchased the game afterwards. Would they have to delete the trial installation and re-install from scratch again.

The Free Trial is actually the full game, the trial is attached to your account instead which is upgraded to full when you set up a subscription.

Thanks, trying to find a way for my friend to get ready to play the game on Friday, while avoiding as much traffic jam as possible.