Hi @kasiabulat I was just reviewing this and sadly this is bit complicated, especially when localization is considered.
The bug here is the the title field in TopicLink is not being populated for these internal category links, the fix is fully server side not client side.
I did remove #starter-task from here cause it is somewhat complicated, but if you feel like giving it a shot again on the server side let me know … so sorry I need to close the open PR I feel extra bad about it. We should have guided you properly.