What the 6.5 mOhm Rds(on) means for the BOM
The 100 A pulsed drain current rating covers inrush events and capacitor pre-charge without oversizing the FET, but the continuous current is package-limited; the designer sizes the copper pad area accordingly.
Gate charge of 44 nC at 4.5 V. The ±20 V Vgs maximum gives headroom for gate-drive transients.
That makes it a clean choice for BOM freeze and production qualification.