No.Asper USA , fifth gen fighter is basically a fourth gen fighter with stealth shaping & stealth treatment on its surface. By that standard f35 is a definitely a gen 5 fighter.
It's LM that gave the 5th gen definition with the eve of F22 :
Stealthy, Sensor fusion, supercruise, super agility, affordable.
F22 was all except affordable.
F35 failed on supercruise and agility.