The satellites are typically much smaller than historic satellites. I think ~50-60 are launched in a fairing that would house 1 or two older-style satellite.
Starlink satellites have gotten big. The V2 Mini they are launching now is 1600 lb, and they fit only 20 some on Falcon 9. The V2 for Starship will be 2700 lbs.
All of those starlinks are designed to burn up though. And there will be many thousands more of them then there ever was of those older larger satellites.
Does the mass make a difference?