Breadcrumb

Shows where the current page sits, and gives one-click access back up the tree.

The last crumb isn't a link

Omit href on the final item. It's the page you're already on, so linking it just gives people a control that appears to do nothing.

text disappears into a page header; button gives each crumb a hit area worth aiming at, which reads better in a dense app toolbar.

Prop	Type	Default	Description
items	{ label: string; href?: string }[]		The trail, root first. Leave href off the last item so the current page isn't a link to itself.
variant	'text' \| 'button'	'text'	Plain links, or each crumb in its own pill.

The last item is treated as the current page and is not a link, so the trail never links back to where you already are.

Don't use it as the only navigation. It shows where you are, not everything you can reach.
Don't use it for a flat page with no hierarchy.