For a three-week period starting on 03-01-2022 (i.e. until 24-01-2022), it is imposed on all companies operating in France to ensure that each employee (whose role allows for remote working) works remotely at least 3 days per week, and up to 4 days per week whenever compatible with the organization of work and the employee's situation. Ministry of Labour's Guidelines (link) have been updated in this respect on 03-01-2022.
Full time remote remains possible provided that the company has implemented a compliant remote work policy or in-house collective agreement.
Additionally, as from 03-01-2022: