Yes it has gestures but the gestures on Android Oreo on the original ROG has more functions like shortcuts to one hand use and screeshot. The one on the ROG 2 just has 3 functions go home, recent apps and go back that's it. I think it has to do with Android Pie gesture implementation which so far has no real meaningful upgrade over Oreo. I hope ASUS improves further on the gestures and rom overall.
The one good thing about the ROG 2 gestures though is it doesn't show the back, home, recent app icons when swiping like on the ROG phone which I wasn't a fan of to start with.