"In the past half a century, free movement has faced a number of challenges. Few have been on the scale of the Covid-19 pandemic, which was characterized by unsuspected difficulties. This paper aims to analyse the responses to these difficulties, both in terms of the restrictions arising from instruments such as the Covid Passport and possible guarantees for the future. Vaccination certificates, derived from a regulation that seeks to ensure free movement, have a dual nature as a restriction that deserves to be analysed. On the other hand, the consolidation of the idea of key occupations is set to be of great importance but requires a final effort for effective implementation. In addition to these issues, the study examines the adaptation of existing legislation to new family configurations, including considerations on the case law of the Court of Justice of the European Union (CJEU) on same-sex marriages and the clash with certain legislative provisions. Theoretical attention is also paid to the problems potentially arising from marriages in nonrecognized forms. Finally, some issues are examined with regard to platform work and digital teleworking."

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