If you're already logged in to GOG that link claims the giveaway directly but doesn't show anything. If you visit it again it will say Already claimed.
Already claimed
And if you're not logged in it will say Unauthorized.
Unauthorized
If you're already logged in to GOG that link claims the giveaway directly but doesn't show anything. If you visit it again it will say
Already claimed.And if you're not logged in it will say
Unauthorized.