A widget created with QquickWidget will always keep focus when using a touchscreen and not give focus to its children.

In the reproducer, the widget titled qtquick.window works as intented, while the one titled as QQuickWidget does not. When using a touchscreen it is not possible to select the textFields, well it can be done when using the mouse. 

After doing some tests with Squish, it seems that Squish is able to identify the textFields and the taps on them, but will still not enable them to gain focus.

It is also possible to select them by holding,  but not by simply touching.