[tomsem]

I knew about this but didn’t think it would be useful for me.

And having just tried it out (for scrolling) I find it rather awkward: tapping the back with enough force to trigger the back tap inevitably shakes the screen and it seems too disruptive to eye tracking. And the default scroll doesn’t scroll page fully. Maybe with practice it would be smoother but I’d be worried about frequent repetition and how my fingers would hold up.

I didn’t see any built in actions that correspond to page turns, and I do not see any way to add these gestures (some reading apps allow mapping volume buttons to page turn but not the ones I use).

By contrast, Voice Control works very well and is totally touch free, but of course it’s only good if there’s nobody around to be disturbed by your commands. The built-in gestures are usually sufficient to do page turns and scrolling, and you can add other gestures as needed (e.g. to scroll fully, or to navigate apps that aren’t fully instrumented for Accessibility). And this also works on iPad.