So is it gender discrimination when 2 people with the same experience of the same gender have different wages because that happens all the time. I have persona

So is it gender discrimination when 2 people with the same experience of the same gender have different wages because that happens all the time. I have personally seen wide pay discrepancies between 2 people of the same gender for a variety of reasons. Timing in the market, Nepotism/Favortism due to personal connections, better negotiating skills etc