Thanks for the feedback, @Hedda Gabler.
We are working to support using the links in the source document to easily add them to the translation (more details in this ticket).
With the new version of Content translation, the editing surface has been replaced with the one Visual Editor uses. That makes it easy to deal with wikitext complexities in the translation, but it still requires some adjustments for the aspects where the translation tool uses the editing surface in unique ways (such as inspecting the read-only original document).
Your feedback is very important for us to identify these loose ends, understand how they impact users and fix them. So thanks for your feedback, and feel free to share further comments.