The discussion revolves around the ordering of categories in the menu. The current two-column layout can be confusing, with parent categories and subcategories not being grouped together. fbender suggests that adding a break to push subcategories into the next column, creating a top-to-bottom then left-to-right ordering, would improve the layout. They provide before and after images to illustrate their point. Mittineague clarifies that the recommendation is to group subcategories with their parent categories, while riking notes that this is already the case, but the ordering needs to be adjusted from left-to-right then top-to-bottom to top-to-bottom then left-to-right.
This is indeed confusing as it currently stands. Though this is not easy to solve with the two-column-layout. E.g. in your example, the parent category is at the very bottom and the subcategories at the top of the next column. Is it possible to add a break that is aware of the structure and e.g. push “Games” into the next column?
If you look closely, they already are - it’s just that the ordering is left-to-right then top-to-bottom.
The recommendation is top-to-bottom then left-to-right.