Where did I say that?
No, the places are not paying for a Michelin star or Bib Gourmand, it is judged by numerous anonymous Inspectors on multiple occasions. Michelin makes money by selling their guide, although the Guide runs at a loss. Their inspectors are paid employees of Michelin which has to recoup the expense somehow.
https://vulcanpost.com/813691/michelin-guide-star-bib-meaning-how-inspectors-chosen/#:~:text=Michelin Stars are given to fine dining restaurants,4 Value for money 5 Consistency between visits
Read the section how Michelin makes money. All you questions will be answered there.
https://trungphan.substack.com/p/the-michelin-guide-business-explained#:~:text=While the Guide loses money%2C the parent company,travel. Here is how Michelin describes the segment%3A