SMC at work increased in all occupational fields, which was indicated by the decreasing number of nonusers and the increasing number of active users. Our results underline that formal SMC at work is a main stressor. These findings are not surprising because the role of social media use at work has been discussed as a stress factor in previous research literature (Bucher et al., 2013; Tarafdar & Ragu-Nathan, 2010; Zoonen et al., 2016). The findings confirmed H1 and H2. Heavy use of social media at work is a stressor, and we saw higher scores of technostress and work exhaustion among this heavy social media user group. Those workers who had used social media at work before the crisis were better off. Fig. 2, Fig. 4 showed decreases in technostress and work exhaustion among these groups. These results generally fit the research evidence, pointing out major differences between accustomed technology users and others (Kim et al., 2009; Taylor & Todd, 1995; Venkatesh & Davis, 2000).
