Gregory's ServerCatchy headlines by The Guardian but the reality might be slightly different.
The application decree has been voted 13 months later - and as of May 2024, a pool of distribution companies (Auchan, Carrefour, E. Leclerc, Lidl, Intermarché) are challenging the Senate's decision in court, asking for a 2 years extension.
Source (French):
https://www.la-croix.com/economie/la-grande-distribution-reclame-un-delai-pour-couvrir-ses-parkings-de-panneaux-solaires-20240503
Another BS law by Macron's (vacant) government...