When a station is CQing, and say three stations answer the CQ.  What makes the software answer one station and not the other two?

I know in old school like CW pileup calling a station, there are several "Tricks" a calling station can do to help their chances at being the one called.

Of course more power, you are louder than everyone else. In FT-8 does signal strength matter at all?

Timing of the call, When to call during the pileup,  This is more or less not a thing with FT-8 or is it? When the Call 1st is checked, what is actually happening?

Just wondering what a station that answers CQ's can do to maximize their chance of being the one answered.

Joe WB9SBD