From Oprah interview :
To underscore that Archie's title in itself wasn't the key issue, Meghan went on to explain that her own royal title didn't define her, saying "the most important title I’ll ever have is mom."
“All the grandeur surrounding this stuff is an attachment I don’t personally have.” She continued: “I’ve been a waitress, an actress, a princess, a Duchess—I’ve always still just been Meghan, right? I’ve been clear on who I am, independent of all that stuff, and the most important title I’ll ever have is mom. I know that.”