Seasoned observers of Meghan Markle – and by now, surely, there cannot be any other kind – might be forgiven for wondering why the Duchess of Sussex has been keeping a comparatively low profile so far in 2023. Her husband seems ubiquitous, whether popping up in the law courts to denounce the media, plugging his memoir or keeping a nation guessing before announcing that he will, in fact, attend his father’s coronation.