Not true IMO. Watch people around you for a while. Single-handed usage is very common [not so common for the constantly-texting crowd], even when often done badly, like all those folks that take photos using one hand without using voice control.
Apple added a camera control button to help lead users into more competent two-handed photography, and many users here laughed at it [IMO ignorantly]. Me, I love having the new camera control button as an additional choice for shutter release and for starting up the camera.
Single-handed mindless scrolling or content consumption? Sure.
The new form factor by Huawei, adopted by Apple is no wider than a current Pro Max. It's even slightly narrower.
