This is about King Charles III's relationship to the Church of England. I've heard that he really doesn't want to defend "the faith," rather the wants to be the defender of faith. https://gentlereformation.com/2022/09/10/king-charles-iii-and-securing-the-true-protestant-religion/
King Charles III and Securing the True Protestant Religion
With the death of Queen Elizabeth II the United Kingdom and a watching world are preparing for a lot of royal pageantry. It's a pageantry that comes with a lot of history and even a little bit of theology.