That’s what GOOG is (as opposed to the “real” Alphabet stock GOOGL). So by your definition one of the FAANGs is issuing “fake” stock. And for some reason it trades higher than the “real” shares.
Owning GOOG still gives you a real 'share' in the company, i.e. if the company was wound up and all its assets sold off, you would get paid in proportion to the amount of GOOG you owned. Whereas you would get no such thing with these fake stocks.