Despite an impressive amount of work on well-being within the work context, one seldom finds scholarly work especially dedicated to the relation between flexibilization HRM practices, and the wellbeing of public employees. This relation is all the more important that hybrid workplaces are meant to become the new normal in a post-covid Era, especially within the public sector. More than a thousand hospital employees were surveyed, mobilizing a scale encompassing employee behavioral data (satisfaction, motivation, workplace commitment, and engagement) aggregated as an index, HRM practices (KSA, flexibility and support, as well as empowerment), and employee wellbeing. Our aim was to weight the importance of the flexibilization of HRM practices (as compared to the above-mentioned other types) relatively to employee wellbeing. A series of ANOVA and regression analyses demonstrate that Flexibilization HRM practices do not necessarily predict employee wellbeing. Practitioners should therefore focus their strategic management efforts on developing more Support, and Empowerment HRM practices in the public sector.