Elements build with Qt 5.15.12 are smaller than on other versions

Please review the screenshots from the Android app (it works like that on other platforms too). 

The same happens for widget apps.

Steps:

1. Build the attached list view project (swipe.zip) on Qt 5.15.12 and Qt 6.4.2.
2. Compare how many elements are displayed in the list view.

Expected: There should be no change in scaling. 

Actual: Few elements are displayed in the app built with Qt 5.15.12.