By default, tooltips serve as non-critical visual descriptions and shouldn't be used as accessible labels for the anchor element. You must ensure the anchor element has an accessible name, either by:
Rendering a visible label or VisuallyHidden text within the anchor element.
Moreover, the TooltipAnchor component should be rendered as an accessible widget through composition, like a button or a link, so it's properly announced by screen readers when it gains focus.