Haven't played TOTK but its predecessor BOTW is one of the best and most open immersive open world games of all time. All physics mechanisms work with other mechanisms and if you can see something, you can go there/interact with it. The map is also big enough thats its in top 10 largest open world maps and from what I've heard TOTK has more than doubled that in size.

The reviews claim that TOTK has only improved in the immersiveness aspect as well.

The fact that it runs on the switch (and they managed to fit it in 18 GB) is a huge feat.