A lot of Japanese video games lean into this idea pretty heavily, too. It's kinda funny how the Zelda series just can't get away from it—no matter how far into the past they go, the magic is always technology from a previous civilization. Skyward Sword was supposed to be the Zelda origin story, and yet the Master Sword still has an AI companion in it from who knows where.
As far as I remember Fi is not an AI companion, she was put into the sword by Hylia. There is all the tech in the Lanayru desert though, that is most definitely tech from an ancient civilization.
