I don't think you ever explained how Link became a Zonai
I have briefly in other posts but here’s a full description of it and my headcanon for it
Link became a Zonai due to Rauru’s cells overtaking his Hylian ones while Link healed himself. This process proved to be quite painful, especially when it came to his spine and skull. This all caused quite the identity crisis for Link, and made him isolate as much as he could. It wasn’t until the transformation became too much to ignore that he sought help from Purah; even then, he tried to hide this change from all in the kingdom. His transformation was completed after he found out the truth of Zelda, staying on top of the Light Dragon for a week straight before storming down to Hyrule castle to confront the one who hurt his princess so.
Link still looks a lot like himself, but there were many traits of Rauru that melted with his own. The white of Rauru’s hair streaking Link’s blond locks. His droopy ears and fluffy chin, and even a small amount of his height. Though half of Link’s markings come from Rauru, the others come from his past lives; with the forehead marking from the Hero of Time’s Feirce Deity mask and Hero of Twilight’s cheek marking, tying the Zonais claim to be divine even more.
It took months for Link to become a full Zonai compared to Zelda’s near instantaneous change, so he had more time to process it than Zelda. Link still suffers from chronic pain from the transformation and struggles with his identity, but he’s surrounded by comrades and loved ones who won’t let him fall. He will never become Hylian again, but he’s still Link, the Hero of The Wild
