There is this idea that all movies, because they are made by movie makers, are just metaphors for making movies. The Menu is the perfect example of this.

The Chef in this movie is the stand in for the director who gathers together all the people he hates, like reviewers and publishers of reviewers (on the grounds they make or break something when they don't), bad actors, financiers, fan boys, and those who pay money but don't really engage and so on.

The problem is of course the director of this movie is a mediocre director so he is fantasising about having absolute control over people, and getting petty revenge.

Look there is suspense but only the most vague and pathetic social commentary. What's more, the pay off at the end is pathetic, as you would expect from a mediocre director.