Cannot distinguish disabled or hovered buttons on Windows 11

I couldn't find an existing specific bug report and QTBUG-97668 is marked as fixed, so I hope this report will be useful.

As you can see in the attached screenshots, disabled push buttons are nearly identical to enabled ones, making them virtually impossible to distinguish. The hover on enabled buttons is also almost invisible (compared to native buttons as in Windows Explorer or a Windows file property dialog, for instance).

Attached screenshots show Qt 6.7.1 (buttons look identical), Qt 6.6.3 (from Qt Creator built with that version) and buttons from a native Windows file properties dialog.

In the 6.7.1 test, only the first and last button are enabled as in the Qt 6.6.3 screenshot.