Quoting the original TJC post:
In the Sailfish OS 3 prototype shown on MWC 2018, a new gesture was included that allowed switching directly back-and-forth between apps with the normal horizontal edge swipe gesture, if that swipe was wider than 2/3rds of the screen.
The recent Sailfish OS 220.127.116.11 though doesn’t include this gesture. What happened to it, did it fall through the user tests for being too confusing? Or is it still coming in a later version?
I must say I really liked that gesture.
it turned out that this experimental gesture can be enabled via
dconf write /desktop/sailfish/experimental/quickAppToggleGesture true. I’ve done that and have been using it for over a year now.
@rainemak mentioned that the main reason for not enabling it by default was that switching away from sailfish-browser did not work properly.
I can happily announce that it is working properly now in 18.104.22.168. So I am asking you to let QA test this feature properly again and then enable it in the next release.