It seems another useful labeling shorthand is broken. To create a card with a label, we used to be able to
@Iain Dooley described this in https://community.atlassian.com/t5/Trello-questions/Is-there-a-way-to-go-directly-to-editing-when-adding-card/qaq-p/1042847 (see the accepted answer):
If you add a card but just want to add label/due date without opening the card, hit enter then esc. The card will have focus, so just hit "l" (lower case L not upper case i) to choose a label, and "d" to add a due date.
Now, sadly, step 4 is broken: Esc no longer moves focus to the bottom-most card of the current column. I wonder if this is an intentional feature removal, or an unintentional regression.
This further complicates labeling after we lost the ability to #label using hashtags (https://community.atlassian.com/t5/Trello-questions/quot-quot-to-add-a-label-while-adding-a-card/qaq-p/2379080).