You can get the buttons back if you want, at the cost of some screen real estate. & agreed, the UI distinction between swiping up & swiping up from the bottom

You can get the buttons back if you want, at the cost of some screen real estate. & agreed, the UI distinction between swiping up & swiping up from the bottom edge is both a pain to distinguish physically & I can never remember which is which. Swiping in from the right for back also makes tapping things on the right edge a bit of a lottery: will the UI decide I was in fact swiping in as a back gesture this time? Who knows... Gestures are a nice idea in principle, but in practice I'm not sure that they're an improvement on actual buttons you know that you're pressing.