(Bloomberg) -- Should a exchange-traded fund that invests directly in Bitcoin receive approval in the US, it won’t be the game-changer for crypto markets that many digital-asset advocates have long predicted.Most Read from BloombergRussia Is Disregarding IAEA Advice to Power Down Ukraine ReactorApple Plans a Slow, Appointment-Only Rollout of Its $3,500 Vision ProUkraine Has Caught Up With Russia’s Tank Numbers, Data SignalMusk Ultimatum to Taiwan Imperils Its Push to War-Proof InternetCEO Who Gr