Hi. Just a few minor comments/suggestions:
I feel that the Options submenu of the Format menu more logically belongs in the View menu. I always forget where those options are and I initially search through all the submenus in the View menu first. I think the View menu makes more sense since those Options are for showing what appears on the screen.
I think a side problem is that the View menu is already quite full. But I think maybe some of the submenus in the View menu could go elsewhere. I don’t have a specific suggestion of where some of them should go, but maybe Scrivener needs an additional menu so that the View menu is more focused.