I was playing with a Motorola G72 and noticed this feature by accident: double-tap on the back of the phone to trigger a custom action.
Here is a video showing this feature
This is not the same as double tapping the fingerprint scanner. This phone has a front-facing under-display scanner.
It’s very neat and handy, I hope other phones implement this too.
Update: See this comment for a link to an app that enables the feature on many phones.
They don’t. I used to work the Genius Bar and sadly the majority of users don’t know how to sign on to iCloud haha.
Apple has a habit of hiding away features. There are some outstanding accessibility features on iPhone.
I personally use the Backtap to run a shortcut that turns off WiFi, not greys it out but off off. I get irrationally mad when it always try’s to connnect to networks and kills my internet.