Comment by darren

Looks like there's some good performance gains here as well. Safari has traditionally been faster on the benchmarks, but recently Chrome has overtaken it.

This Preview puts Safari in the lead again.

Speedometer 2.0 (https://browserbench.org/Speedometer2.0/) on my M1 Air:

Safari 15.4: 258 runs/min Chrome 101.0.4951.64: 264 runs/min Safari Tech Preview 15.4 (release 145): 307 runs/min