Overlays
Hover card
A rich preview shown on hover, such as a member summary behind a name. Never put required information here alone.
Not documented yet
This component ships in the design system and is fully supported. What is missing is the guidance around it: when to reach for it, the do and don't, and the accessibility notes. Until that is written, Storybook is the reference for variants, props and live controls.
Context menuPlanned
The right-click menu. Use it only as a shortcut to actions that are also reachable another way.
Table
Rows and columns for scannable, comparable data. Table is the static primitive; DataGrid wraps it with search, sorting, column visibility, paging and loading/empty states for operational lists.