As reported [vivaldi.com] on the Vivaldi browser blog:
Just when you thought the Do-Not-Track (DNT) privacy setting was gathering dust, a court in Berlin, Germany decided to exhume it. The Berlin Regional court ruled in favor of the Federation of German Consumer Organization (Verbraucherzentrale Bundesverband, vzbv), in their lawsuit against LinkedIn for ignoring users who had enabled ‘Do-Not-Track’ in their browsers. According to the German judge, companies must respect DNT settings under the General Data Protection Regulation or GDPR.