On test-device Galaxy S20 5G with Android 13 and also on  other devices 
If we show QTextEdit with scrollbars only a part of it is scrolled. Scrolling shows artifacts.
The same problem happens with QListBox, ... where artifacts remains on screen after scrolling.
Furthermore, the CheckBox is not updated after touching on it but need some other interaction to show its current state.

Attached is the small example and screen recording.