W0r1dL1ne

If I get the preview of the game on steam will that act as a pre-order and I can play the game on release without having to buy it again? I have been playing this awesome, jaw dropping game for sometime now and I am tired of getting the Xbox game pass to play. I have a PC and want to play the steam grounded preview and I don't want to have to buy it again on release. Does buying the preview give the full game when it releases?