The "Toolbar" mode is completely obsolete. It should not be used at all in modern versions of FreeCAD.
Sorry, I haven't make it clear in first post. I marked defect places with red circle and reload it in first post.
Can you submit another pull request to just disable the "Toolbar" option in the preferences? I think this would be done in the .ui file of the Draft preferences. I think that makes more sense than editing DraftGui.py.
Well, this thread. It's an option that shouldn't be used because it doesn't really work fine. I'd at least add some text in the tooltip saying that it is obsolete.