At the end of last year, the 'Card archived' dialogue box started staying visible until user clicks 'Dismissed'.
I understand you may want to undo closing a card, but the original several seconds visibility of the dialogue was enough time for this, and anyway you can go to the card in the archived items.
Having to follow up every request to close a card with essentially a confirmation click on a different part of the screen interrupts workflow, and the moment of feeling like you completed the task on the card. Plus it obscures first list on board.
This change was not an improvement.