Here is a rather surprising data point. My first statement cut 4 days after my application was approved. It cut before I even received the card in the mail to activate. The new account is already reporting today on EQ and EX, but not TU. Zero balance, of course.
Edit to add: The new account started reporting on TU one day after EQ and EX. No FICO8 scoring change yet on any bureau, but I was already on a "new revolver" scorecard. AAoA decreased by 3 months.
