What are the diffs between

coordinates.positionInRoot()

and

coordinates.positionInParent()

?

There is no diff, those two are literally the exact same text. Did you mean to paste in a different function?

Sorry for that, Edited done.

Hmm, the method names are pretty descriptive I think. Unless you don't know what "root" means?

Actually I Logged the y coordinate for each one like:

.onGloballyPositioned { coordinates ->
    coordinates.positionInRoot().y
    coordinates.positionInParent().y
}

And they have different values

Parent is your immediate parent. Root is the top-level container of the window. So they are going to be different in most cases.