They said 15% globally but I imagine this looks vastly different depending on local culture.

The growing consensus is that true workaholism encompasses four dimensions: motivations, thoughts, emotions, and behaviors, says Malissa Clark, an industrial/organizational psychologist at the University of Georgia in Athens. In 2020, Clark and colleagues proposed in the Journal of Applied Psychology  that, in sum, workaholism involves an inner compulsion to work, having persistent thoughts about work, experiencing negative feelings when not working, and working beyond what is reasonably expected.