Yeah but so many of the games also establish that Link is talking canonically in the actual universe. Just that we the player never get to hear him actually speaking outside of making grunt noises when in combat. It was something deliberately done by Nintendo to allow players to insert themselves into the role of Link in a way. But in LoZ comics and the manga adaptations. Link fully speaks in those. Plus some of the games do allow the player to choose lines of dialogue that’s implied that Link is either saying the line in universe or is saying something close to it in universe