Mask-wearing is no longer mandatory in France. Plus, travelers don't have to jump through any hoops to get into the country. They cannot request a COVID certificate, and you do not need to prove that you are COVID-negative before entering the country. If you do need to visit a hospital or similar setting, you will find that most people are wearing masks, and they may request that you wear one. Something to keep in mind if an emergency happens (or if you need to visit a sick relative).