Excellent resource for my Samsung S5 on Marshmallow.
I was using Swipe Home Screen originally to achieve the same results, namely wanting 3 swipe options: Recents - Home - Back, because it's easier and faster to swipe than press the buttons. But the App wasn't reliable for me anymore after development seemed to cease.
I've been using the next best App I could find: All in one Gestures, but the left and right lower areas must be corners, not strips, and I've never liked it for that reason because the swipe areas are far too small. Enlarging its corners prevents proper key / button presses in some other Apps I use.
But this swipe project is precisely what I've wanted for the last 12 months and only just found today. I tweaked the swipe strips, reducing their width from 150 to 100 then increased the strip height from 10 to 15, and it's excellent. Responsiveness increased after the height adjustment, and after I used the function a number of times. It's easy to tweak the settings to suit yourself.
An excellent, easily configurable resource that works as claimed. I'm very happy with it and grateful to Joao.