If you have multiple links within a block of rich text then the Link UI will be "anchor" to the final first link you clicked in the block.

So if you click the first link in the block and then click on other links, the popover will continue to anchor to the first link. Similarly if you clicked the last link first, it would continue to anchor to that link.

It should be anchored to the link that triggers it. I suspect this is due to the way in which we recently changed the usage of useAnchor to cache the first position.