I have never heard vacancelle in France. But le week-end all the time. Even my kid’s school teachers used it. “Bon week-end!” Never heard fin de semaine even am

I have never heard vacancelle in France. But le week-end all the time. Even my kid’s school teachers used it. “Bon week-end!” Never heard fin de semaine even among my old country neighbors in Provence. My anecdote doesn’t make it fact of course. Most French people I know don’t pay any attention to the Academie Française.