Incomplete documentation about Qt::WA_InputMethodEnabled attribute

In the documentation about Qt::WA_InputMethodEnabled attribute here: https://doc.qt.io/qt-5/qt.html#WidgetAttribute-enum it is described as:

"Enables input methods for Asian languages. Must be set when creating custom text editing widgets."

It does not concern only Asian languages, it must be enabled for virtual on screen keyboards to work. In https://doc.qt.io/qt-5/qinputmethodevent.html is described as:

... the Qt::WA_InputMethodEnabled window attribute must be set explicitly (using the QWidget::setAttribute() function) in order to receive input method events.

So although Asian languages is a very frequent use case, it controls whether the widget receives input method events at all.