“By the way, I recently read that, technically speaking, it is only correct to refer to Catholics in the Diocese of Rome as Roman Catholics. For example, I would actually be a Pittsburgh Catholic, not a Roman Catholic, although I am from the Latin Rite. Do you or Mark know what I am talking about or if I am correct?”
In a manner of speaking it is correct.
Catholics look on diocesan bishops (Catholic and Orthodox) as the successors of the apostles who founded the particular church of their locale.
In this manner a person could be a member of the Church of Corinth, Rome, Constantinople, Alexandria, Tucson or Pittsburgh.
Those of us who prefer Roman Catholic (actually Latin Catholic) are emphasizing our connection with the Roman Pontiff rather than the (e.g.) Maronite or the Melkite Patriarch.
Emphasizing the connection with the particular church rather than the Roman Church is IME common among very liberal Catholics and liberal bishops, many of whom actually see Roman Catholic as a derogatory term.
Good to know.
Those who refrain from self-identifying as "Roman Catholics" tend to be from the more liberal branch of that church.