To avoid encoding the special characters add the NE flag to the rewrite rules https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/facing-issues-with-special-characters-in-url-in-dispatcher/td-p/394662#old_hash=&from_ims=true%3Fclient_id=DXLithiumProd&api=authorize&scope=openid,...