Thank you for the reply. That really is a shame, especially with Anki being such a good way to learn languages. This isn’t a full solution, as I cannot type “fluently” with the suggested way of entering special chars. Now I not only need to learn the language, but also a way to enter it - which is another thing to overcome.
But I also image that changing the toolkit would be very hard.
EDIT: It turns out I can type special chars in the “tags” field (when adding a new note) just fine!