Nope, I did so, but the name remains invariably.
You can see a screengrab here: https://drive.google.com/file/d/1EdFxzrfC0ct6kaiwFvd69W-T7xLhMvcA/view?usp=sharing
Maybe I omitted something?
According to my test, the name in the Options > General > User Name box will be shown in the comment until you save and reopen the document (the replacement appears to occur during the closing, even though the option mentions saving).
Also, when you immediately went to the Trust Center and unchecked the box for "Remove personal information", that canceled the setting by the Inspector -- don't do that unless you want to stop replacing names with Author.