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When a user see a list of  Linked/Related Questions on right panel, it will be useful to have the word [duplicate] visible immediately after title. It will help to understand why the questions linked and should I look at them. 

Note that if the question has too many links, there is a link at the bottom "see more linked questions" and it opens full size page, where [duplicate] status is shown after the title of each duplicate question. So the change will make linked questions presentation consistent.

Somehow related suggestions to make easier see duplicates:
Show questions closed as being duplicates on the initial question.
Show list of duplicates of the question

marked as duplicate by Shadow The Princess Wizard feature-request Aug 17 '16 at 14:43

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  • @shadowWizard The request meta.stackexchange.com/questions/126460/… is similar, but different. This suggestion is about duplicated linked questions, not about closed related questions. So the use case for them is slightly different. – Michael Freidgeim Aug 17 '16 at 14:55
  • Duplicate is closed, just one type of closure. – Shadow The Princess Wizard Aug 17 '16 at 14:57
  • @ShaWizDowArd, it's better to have specific state "duplicate" shown instead of less descriptive generic "closed" – Michael Freidgeim Sep 24 '17 at 21:03
  • This is almost obvious, in my opinion. If done, I am pretty sure they will show "duplicate" instead of "closed" anyway. No need for special request. – Shadow The Princess Wizard Sep 24 '17 at 21:07