A labelled by relation should take absolute precedence for some labels
When trying to find a solution for gtk#4241 (closed), where a GTK 4 push button gets a labelled by relation and a name which is not exactly the same as the content of the labelled by element, Orca reports the label multiple times when you focus such a button (any button with an use_underline attribute, for example). As GTK 4 is trying to be close to the ARIA specification, i think that Orca should only use the content of the labelled by attribute, same as is required by ARIA.