online dating stages

How does one exactly find a serious relationship out of online dating apps like Tinder, Bumble, Hinge, OkCupid, etc.? What stages do couples who met online undergo to turn from total strangers to long-term partners? Is there some sort of pattern or consecutive flow of events to anticipate or possibly prepare for? Is there a map one can follow to navigate their way through dating apps to arrive at their desired destination: an actual relationship?