No she/they didn’t. They kept their HRH designations although they agreed not to use them, and she is now styled Meghan, Duchess of Sussex.
Although Halfwit supposedly has a substantial inheritance from his mother, H & M are still being funded by Daddy Charles to the tune of $2-$3 million per year, and Charles (not them) indicated his help is not limitless. H & M are still trying to get either the taxpayers in Great Britain and Canada or Daddy Charles to pay their security costs too, to the tune of over $1 million per year.
And as to that money, what did Charles and his family do to earn/justify this money anyway. And speaking of Charles, he and his wife Diana were lucky if their combined IQ was 100. You really agree with Charles trying to cleanse the country of Christians, and promote Islam and Climate Change? Not to mention their whole Jeffrey E[stein deal. Why do you like Brits (Germans, really) more than the U.S.? Do you want the Clintons or Obama to become our monarchs?