Are you the sort of gamer who doesn't play a game for the story because that is part of what made witcher 3 so good. The story was fantastic and had so much depth. There is almost no story to zelda. I love both games but they are very different. I had an old house mate who couldn't have cared less about the story in any game he played. It did my head in to watch him go through games like the only goal was to get to the end of the game as quickly as possible. Each to their own and all that I guess.
Witcher 3 just burnt me out with screen after screen of utterly (IMO) unnecessary padding and pointless dialogue, for the first 30hrs or so I put up with it, but as I went further in, the less I cared, when the ratio of actual gameplay to cut scenes becomes as low as it did in Witcher 3, I may as well just read a book.
With Zelda, less is more.
I'll admit it aswell.. I used a guide to get the last 7 or 8 shrinesI don't know how I missed some of them though.
But that is the genius of it, those shrines you missed, will have been found quite easily by others just wandering around and they will have missed many of the more difficult to locate shrines that you found quite easily or by chance.