[GuidoK]

Also the time to setup the car is now very limited. Only friday morning.
After friday qualifying they go the the parc fermé.

But still I think this only makes RB a stronger competitor (although Max is against the sprint race system).
The RB is out of the box the best car imho and other teams have more difficulty to set up their car. They are far more hit&miss imho.
So indeed what M5Rick says teams that have lesser cars might go for a typical aggressive sprint setup that might make the car fast for a few laps, but get into trouble on sunday during the real race when they suffer tyre degradation like crazy or something like that.
We'll see what kinds of setups they choose.