Does Article 79 GDPR require a ‘double remedy’ for data subjects?

In many Member States of the EU the view is taken that Art. 79 GDPR requires that complaints against violations of the GDPR can be lodged either with the data protection supervisory authority or with a court, at the choice of the data subject (a ‘double remedy’). However, where, in Member State law, the procedure for applying to a data protection supervisory authority according to Art. 77 GDPR and subsequently, to a court according to Art. 78 GDPR, satisfies the conditions that were established by the European Court of Justice in the case of Puškár , there is an ‘effective judicial remedy’ within the meaning of Art. 47 CFREU, so that no additional remedial path to a court needs to be foreseen in national law.