When working with a board that contains many cards, of which only a small fraction are assigned to me, it would be very helpful to have a shortcut—similar to Jira—called “My cards.”
This shortcut would automatically apply a filter on my name, allowing me to see at a glance which cards are assigned to me with a single click.
Ideally, this shortcut would be placed in the top-right corner, next to the existing Filter icon. Or you could click on the picture of the user, that is already present and apply the filter when the picture is clicked, and clear the filter when clicked again. This would be intuitive, I think.