Charles may now be the King but I'll never regard her as "the Queen".
$1:
Shortly before her death, Queen Elizabeth II expressed her “sincere wish” that Camilla be declared queen consort when Charles became king. A royal source told the BBC it made sense for Camilla to use the queen consort marker in the initial part of her reign as a way of distinguishing her from the late Queen Elizabeth. The coronation is the “appropriate time” to make the change to Queen Camilla, the source said.
She is the wife of the reigning monarch, not the monarch.