Under the title “Eckpfeiler der digitalen Souveränität: Open-Source-Lösungen in der öffentlichen Verwaltung - EUPL & openCode“ the cyber security team L3montree highlights the benefits on the European licence.
Creating Openness: The Imperative of the European Union Open Source License for Digital Sovereignty.
Their vision is that administrations around the world are at a crossroads: The choice between proprietary systems and open source solutions is not only a technical one, but also a strategic one that can impact administration, citizen engagement, and the very fabric of democracy. According to their analysis, the European Union has attempted a solution for digital administration that would reconcile the benefits of open source software with the complex legal landscape of its member states: the European Union Public License (EUPL).
More information here (in German).
Referenced solution