A factoid that is also a piece of trivia, i. e., a subset of factoids as a whole, like how dwarf stars like our yellow-lit sun, a yellow dwarf sun, are a subcategory of stars, and how many prominent planetary scientists like Dr. Alan Stern, Principal Investigator of NASA's New Horizons Mission to Pluto & Beyond, consider dwarf planets like Ceres, Pluto, Charon, Haumea, Makemake, and Eris to be within a subcategory of the larger community/category of planets in general.
Lizzo playing James Madison's flute is gonna make a virile triviaoid til Kenye West plays David Bowie's piccolo, and maybe even afterwards.