As described here:

When a user pastes a Business Central URL into a Teams chat it is converted to a Card. But when they use the "Share to Teams" feature from within Business Central instead the entire URL is displayed in the resulting Teams chat and is not converted to a card. The full URL takes up a lot more screen area and it is not immediately clear to the user what the URL relates to. It would be better if the "Share to Teams" feature behaved the same as pasting directly by converting the URL to a Card.
Needs Votes
Ideas Administrator

Thank you for this suggestion! Currently this is not on our roadmap. We are tracking this idea and if it gathers more votes and comments we will consider it in the future. Best regards, Business Central Team