How can I change the label width of an EditorGUI.PropertyField?

I am trying to change the label width of EditorGUI.PropertyField.

I can create a separate EditorGUI.PrefixLabel in code and adjust its length. I am looking for a solution with a uss style that can change all of my properties in a uxml without writing excessive code.

You are mixing here aspects of two separate UI systems.

EditorGUI.PropertyField and EditorGUI.PrefixLabel are part of IMGUI (oldest)
where
uss and uxml are part of UI-Toolkit (latest)