There was the one shot demo that you could play last week.
In that demo, you had half an hour to get as far as you could in the police station.
I would imagine that even if you could speedrun pretty far in the game, you did not download the whole game in case you got that far. So it must hard block you at some point, even if there's still time on the clock.
So if you were to remove the time limit (or go really fast), how far could you theorically go in the one shot demo?