There is a link around your logo. On the home page that link has a class and a current class added to it automatically by Webflow.
Your padding is set to the current state of the link. That link on the about page isn’t current so it looses the current class and the padding that comes along with it.
Remove the padding from the link while it is current and style the base class on the about page. Or remove the link destination from the logo until you have the design they way you like it.