Any replacement for One Hand Operation +?

I use Quick Cursor and One Hand Operation +(Samsung exclusive) constantly. I tried a year ago a bunch of other gesture apps from the Play Store, and nothing was even close.

Did anyone find something to help using a phone with one hand?

(I use it for Back key, Recent key, Task switcher, Quick launcher, Sesame, Previous app) Having all shortcuts available with one swipe instantly from the place you have your thumb already is just comfortable