Currently if you paste a link to another board it creates a really nice preview link / card (not sure of the official component name, but I love it!!)
However if I make updates to the linked board - such as title or cover image - the details don't update in the preview card, including the date stamp of last modified.
Would expect that the information shown on the preview link (such as title, cover image and last modified time stamp) reflect any changes that have been made whenever you refresh the board that contains the links.
Thanks!