Breadcrumbs

ui.Breadcrumbs creates a path of items, as Finder's path bar and AppKit's path control, separated by chevrons: the items but the last are links, which a click chooses, as Enter does, setting an *int to its index, which Changed reports. Long items shorten with an ellipsis as room runs short.

path := []string{"Macintosh HD", "Users", "ada", "Documents"}
if ui.Breadcrumbs(c, path, &app.chosen).Label("Path").Changed() {
	app.open(path[:app.chosen+1])
}

The last item is where the user is, which is no link.

Accessibility

Assistive technology sees links in a navigation landmark, which Label names and screen readers jump to among the window's landmarks, and the last item as the current page (ui.CurrentPage), which they read as such. A trail of your own says the same with Role(ui.RoleNavigation) and Current:

ui.Row(c).Gap(6).Role(ui.RoleNavigation).Label("Breadcrumb").Children(func() {
	ui.Link(c, "Home", "/")
	ui.Text(c, "/").AccessHidden(true)
	ui.Text(c, "Settings").Current(ui.CurrentPage)
})