Logic model, not a design spec. Two tiers: every side-nav category (tier 1) owns a row of tabs (tier 2), and a tier-1 category can also be a single feed with no tabs. The Disco surfaces are tier-1 categories. Flip Home to compare a personal feed (no tabs, all algorithm-seeded) against a tabbed Home (Recommended, Trending for you, My Services). Flip User type to see the AVOD reorder.