QGeoRectangle and QGeoCircle are derived from QGeoShape. Both derived class explicitly declare that they want to use the == and != operator from QGeoShape. The C++ syntax is

using QGeoShape::operator==;
using QGeoShape::operator!=;

This creates the following warning

qtlocation/src/positioning/qgeorectangle.h:71: warning: No documentation for 'QGeoRectangle::operator!=;booloperator!=()'

At the same time the documentation for

bool operator==(const QGeoRectangle &other) const;
bool operator!=(const QGeoRectangle &other) const;

is obscured and or entirely dropped.