BlueSky wants a feature where all users see all categories in the sidebar by default, not just the default ones. mcwumbly suggests adding all categories as defaults, which BlueSky confirms is the desired solution. However, BlueSky couldn’t find the relevant setting. mcwumbly provides a link to the “default navigation menu categories” setting, which BlueSky successfully finds. Jagster cautions that showing all categories in the sidebar may not be ideal, particularly for mobile users, as it can be crowded and hide other content.
Ah, I see. I think you’re not finding a match because the setting is named “default navigation menu categories” (and “category” isn’t a match for “categories”).
Because you got answer, here a extra cherry just to think about
there is already easy access route to categories
for mobiles putting all categories to the sidebar makes it really crowded (unless you have type max 5 categories)
mobile users must open the sidebar to see categories and then it hides other content totally
categories of the sidebar is something that users can customize. Then hiding all not-so-important ones gives much more pain than letting users decide what categories are important to them