It's BOTW 2. I personally loved BOTW, so I love this even more, but this isn't for anyone. It has the same map, characters, graphics, and many of the same items, noises, and enemies. It has many new enemies (about 50% of the enemies in this game are new), mostly new items, mostly new weapons (though kept most of the old ones), all new abilities, all new shrines and towers, all new questlines and quests, and a new story. It also adds two new layers, which makes the map much bigger, adds new towns and areas, and makes MANY quality of life changes.
This is a 10/10 game for someone who likes Zelda games, and is the perfect balance between preserving a franchise and adding new quality content, which can be hard to do. AT THE SAME TIME, you probably will not understand most of the story, or have very much fun if this is your first Zelda game. Play BOTW and come back, since that is the start of this story. This is a true sequel. If you did play BOTW, the negative reviews are BS. Buy this game, you will not regret it (even though the price tag is hefty).