84In so far as Hungary asserts that that decree also contributes to reviving the national economy, by addressing the fall in the production of construction materials and the increase in their prices following the crisis connected with the COVID-19 pandemic, and safeguarding social interests such as the construction of housing and the possibility for young people to found a family, it must be recalled, first, that purely economic grounds connected with the promotion of the national economy or its proper functioning cannot serve as justification for an obstacle to one of the fundamental freedoms guaranteed by the Treaties (judgment of 13 July 2023, Xella Magyarország, C‑106/22, EU:C:2023:568, paragraph 64 and the case-law cited).