"I'm not sure how much of the story is actually true"
The history and archaeology of the Vasa has been extensively studied by experts in their relevant fields – archaeology, history, dendrochronology, marine biology…Some stories – like the one published here by FT – are overly simplistic. For a good, accurate, scientific history of the Vasa, the Vasa Museum's site is extremely detailed (and also separates supposition and apocryphal tales from established science).
Website of the Vasa Museum in Stockholm: https://www.vasamuseet.se/