Quite frankly, she was in the inner circle for what, 4 years? But she's been out of it for 3 years, what else is there to say?
They announced their engagement in November 2017, and they left for 'family time', followed immediately by 'stepping back', 2 years later. So Meghan was only a senior royal for 2 years. And given how she was mistrusted by Kate, William and no doubt others, I doubt she was really privy to any family secrets. She's been out of the royal family 'business' for 4 years now, twice as long as she was in. But clinging onto the remnants of her royal life is the only thing which keeps her even vaguely interesting, so cling on she will.