What's the bar for being hired as a FAANG engineering manager? Prev FAANG management experience? Prev FAANG IC role? Cursory LinkedIn searches show many FAANG e

What's the bar for being hired as a FAANG engineering manager? Prev FAANG management experience? Prev FAANG IC role? Cursory LinkedIn searches show many FAANG engineering managers were promoted from within or came from a similar position at a similar company. FWIW I've been both an IC before and have steadily moved to CTO at my current startup. I come from a non traditional background (non CS) but had several leadership roles there.