Stages 1 and 2 (6e, 6f, built) filter every kind by level and search. Real browsing goes by the system’s own properties: a spell’s tradition and rank, a creature’s size and traits, an item’s price, a 5e spell’s class. Each system declares its filters in a browse definition, data like its sheet definitions, so a third system needs a file rather than a release. The same row appears in a campaign, in the library and in Admin’s Browse.
Counts follow the sizes of the starter packs, with the other filters applied; the rows are made up.
Your answers, 2 November (Q199–Q202), recorded as D310–D313: the filters as drawn (D310); counts on the choices (D311); the system’s filters folded behind “Filters (n)” on a phone (D312); A–Z plus level, rank, price or CR where a kind has one (D313).
Also here: 6e, stage 1 · 6f, stage 2 · the prototype index.