The biggest flaw I've found in the beta is the system gestures for going back are kind of flaky.
It's really hard to describe the exact issue, but for starters it feels slightly slower, and will occasionally register a press rather than a back gesture. Sometimes you'll even get the back arrow fully appear then disappear and click instead.
It can cause you to toggle options you didn't intend to. Mainly happens if you are several items deep and want to go back multiple times quickly
