LineSeries does not have a declarative way to set data.

The LineSeries QML component lacks a way to take a list from the C++ side and set that as the data.
https://doc.qt.io/qt-6/qml-qtgraphs-lineseries.html

It requires workarounds like some function that calls append()

What I expect is a single property that takes a QVariantList which can be used to set the line. It would ideally be able to take a list of integers instead of points.