In Android 5.0 Lollipop, you'll find that the recent apps button has been redesigned. Instead of two overlapping rectangles the button is now a single square.

For those whose Recent Apps list get a little out of control, here is the button to close all the apps. GravityBox root app required - Android customization ...

Simpler multitasking: Switching from one app to another should also get simpler in N, where a tap of the recent-apps button will longer show a seemingly infinite list of every app you’ve opened ...

The new "home" button on Android Pie. How to use Android Pie’s recent apps feature Your email has been sent In previous incarnations of Android, there was a clear and present method for ...

According to XDA’s research, the home button will act as the back button and the recent apps button all in one. Users will be able to slide the button to the left when they want to input a back ...

In Short: Recent Apps button not working on Note 4 5.1.1 after upgrading from 4.4.4. Long Version: I had the note 4 from January 2015 and until 3 weeks ago it was ok.

But are gestures better than Android’s 3-button setup? I do have to admit that I’ve come around to preferring Android’s gesture system after all this time.