This gets worse whenever I see new Apple keynotes about their latest iPad gestures for multitasking or text editing. On the computer I have visible menus where I can peek the shortcut for each action but is there anything like that on i(Pad)OS? Just adding more and more gestures without giving the user some intuitive hints/signifiers seems like a degradation of usability. The scrollbar tells me that there is more to show and auto-hiding it was a first step into the wrong direction.
I am glad that Android got rid of the dedicated menu button which only worked in very special places without showing any on-screen indication for its availability and I feel like the Option key on Macs is still hiding important things from their users.
The now deprecated(?) 3D Touch on iPhones also seems to suffer from this issue. I was expecting some sort of visual clues to the user (like differently colored buttons) that certain elements offered special actions with a harder press but instead the 3D Touch-enabled elements continued to look the same and mostly the tech-savvy users kept up with where this feature was enabled and where not.