I was reading reaction to the 'Arrow-verse' crossover Crisis on Earth-X (which personally I thought was a lot of fun) and found myself weirdly bugged when a poster made the statement that the original Freedom Fighters characters were purchased at the same time as DC bought Fawcett Comics characters.
'Busy' Arnold sold his Quality Comics stable to DC in 1956; DC continued publishing GI Combat, Blackhawks, Heart Throbs and The Three Musketeers. They revived Plastic Man in the 60s and then The Ray, Black Condor, Phantom Lady, the Human Bomb, and Uncle Sam in the early 70s for CRISIS ON EARTH-X, one of the annual Justice Society - Justice League cross-overs as the Freedom Fighters (which then led to a short-lived late eponymous 70s comic).
Also in the 1970s they brought back Quality's Kid Eternity and then in the 1980s they revived Quality's Midnight, The Red Bee, Manhunter, Firebrand, The Jester, Magno, Miss America, Neon the Unknown and The Invisible Hood. The 1980s also saw the end of the longest surviving Quality Comic, GI Combat.
By contrast, DC didn't purchase the Fawcett Comics characters until around 1994 or so (from IIRC then owner Ballentine). Any appearance prior to that date was from a license DC had. The only connection between the two companies or their characters was that in the 1970s a DC story made their licensed version of Fawcett's Captain Marvel, Jr. the brother of Quality Comics character Kid Eternity (who had, prior to that point, not had a name and no relations outside of a grandfather killed by Nazis).
And then I realized it was weird to be bugged by somebody getting such minutiae wrong, and probably weirder that I know all of this **** to begin with.