Justin Lin says to YSITD https://forum.xda-developers.com/t/app-beta-0-9-tap-tap-double-tap-on-back-of-device-gesture-from-android-11-port.4140573/?fbclid=IwAR1Tf0vUz1qenVT1R70PHBS3oy36p4sX3y5HnsFF0CvK7rPWDOBntftxtiw