Where was this stated?
Supposedly Nvidia has routine free game giveaways for geforce experience users, however, I'm doubtful since none of it is transparent aka a winner list with the ability to get legit information about winners. I've seen numerous internet contests that follow the same no transparency theme in which winners aren't posted or mentioned and there is no recourse to tell if the event was even legit. EVGA is really good on that though they don't auto delete contest pages once the event is over with and will provide winner ID.
Also the chances of being selected is like 1 in millions.