Some time screen is not panning to the top side and due to that input filed goes behind the on screen keyboard.

This tested with Qt versions: 6.7.3 & 6.8.1. On 6.7.3,  I've noticed that with Qt 6.8.1 the contents of window are moved up, so the field below the on-screen keyboard will be still visible when typing, and not being covered by the keyboard. Unfortunately not always.

The keyboardRect is usually (0, 0, 0, 0) on a first focus in the text field, but in some cases it's empty after switching between several TextFields.

It's a rare issue on Samsung S20FE (Android 13), but on Samsung Tab A8 (Android 14) it happens all the time. Usually first time after startup the keyboardRect is invalid/empty, another time the keyboardRect is valid.

Attached tiny example can be used to see this and also screen recording.