Triple zero is something new, at least in licensed, commercial casinos.
Those who search for an online casino can find either single- or double-zero wheels. A few have one zero, a more common configuration in Europe than in the U.S.
Most wheels in the United States have two zeroes. What brings this to mind is a recent movement in Las Vegas toward offering wheels with three zeroes. Those devising roulette strategy need to be aware of the effect of the zeroes. Roulette odds are dependent on the zeroes.
As casino axioms go, this one from roulette is a basic that everyone should know: The house edge at roulette is derived from the zeroes.