I just started it yesterday. So far just learning the tools (ultrahand, fuse) and solving simple puzzles to practice with them. I am excited for the world to open up more after this semi-tutorial beginning section.
Discussion
Once you get down to the surface prioritize the paraglider. "Most useful item in the game." They aren't kidding.
https://www.polygon.com/zelda-tears-of-the-kingdom-guide/23708581/paraglider-how-to-unlock