My B747-400 has FPV on the PFD. The angle of attack is the difference between aircraft symbol and the FPV (flight path vector).
"angle of attack is used to describe the angle between the chord line of the wing of a fixed-wing aircraft and the vector representing the relative motion between the aircraft and the atmosphere."
Sorry to be pedantic, but the airplane symbol is body pitch angle, not wing chord angle
I understand that very few B744s have FPV installed.
Perhaps on older 744's. I believe it's now standard out of the factory. You'd have to pay to have it removed.
Rgds.
NSEU