I liked the remix from ANBAL534 ( https://www.printables.com/model/207028-steam-deck-carrying-case-insert-for-eu-plugs-europ) but missed the option to use the case as a stand as well.
Besides that I don't use full SD cards, I opted in adding space to store microSD cards.
As the insert does not go in all the way, the protrusion from the charger through the insert is no problem. It eventually fits neatly in the steamdeck carrying case.
The author remixed this model.