re: BoTW, horizon or Witcher 3

For you Witcher 3 guys, where did the game really pull you in? How many hours or what significant quest did it get you?

When I first started playing it I was into it, but it eventually just felt too big. I would run into enemies that were wayyyyy out of my league. The last big thing I remember from my game was the story with the dead baby fetus thing.

I feel like it was relatively early in the game. Where does that part fall into the rest of the game?