What problem does this address?

When opening the site editor, the hierarchy of the main menu seems unbalanced. “Styles” feels more like a tool or a global customization setting rather than an entity. While the other sections—Navigation, Pages, Templates, and Patterns—are about managing specific “entities” or tangible building blocks of a site, “Styles” is about overarching design settings that apply universally.

What is your proposed solution?

I suggest moving “Styles” to the top of the menu. This change would improve the hierarchy, making it easier to access what seems to be the central feature of the menu (as described: “Customize the appearance of your website using the block editor”). It would also help distinguish this global customization tool from the other sections, which are focused on managing individual entities.