The 2020 pandemic forced many workers in Canada to work remotely. Today, many continue to work remotely, at least in part. This new "hybrid" mode offers employees greater flexibility. What are the various hybrid work modes adopted by employees? What are their determinants, impacts and conditions for success? A CIRANO team is conducting an innovative longitudinal study of employees in several organizations, to provide employers with evidence-based data. This text summarizes the main results of the first and second phases of the project, conducted in Quebec in summer 2022 and spring 2023. The third and final phase of the research will take place in winter 2024.