How to exclude QGraphicsDropShadowEffect from a desired widget side?

Karine

Is it possible to exclude a shadow effect at a given side of a widget?

I mean, suppose you want to draw the shadow just at the bottom.

I'm looking for another option than moving the effect with
setXOffset setYOffset

I have found this API but for qgraphicseffect:
https://doc.qt.io/qt-6/qgraphicseffect.html#updateBoundingRec

How could i call it from a QGraphicsDropShadowEffect ?

auto label = new QLabel();
QGraphicsDropShadowEffect * dse = new QGraphicsDropShadowEffect();
dse->setBlurRadius(60);
dse->setOffset(0);
dse->setColor(0x007eff);
label->setGraphicsEffect(dse);     // Would like the effect be ablied just to the top and bottom borders