Rule reminder
Stylistic choices: 'sebbene' is the most common formal choice; 'benché' is slightly more literary; 'quantunque' is archaic/very formal; 'nonostante' + noun is concise and journalistic; 'pur' + gerundio is elegant and avoids a subjunctive clause.
«_____ la Commissione europea avesse raccomandato interventi urgenti, molti governi tardarono ad agire.» (EU policy editorial)