The "clickbait" headline is merely stating the law. Article R4228-19: "Il est interdit de laisser les travailleurs prendre leur repas dans les locaux affectés au travail."[0] Google translates this as "It is forbidden to allow workers to take their meals in the premises assigned to the work."

Enforcement may be lax but the headline is perfectly accurate.

[0] https://www.legifrance.gouv.fr/codes/article_lc/LEGIARTI0000...