There are still gaps in the literature, as there is a lack of comprehensive evaluations regarding whether the fifth industrial revolution contributes to businesses achieving leanness, one of the three components of FIT manufacturing, the production philosophies that aid businesses in optimizing operations, responding to market changes, staying competitive, innovative and fostering sustainable development. The effectiveness of the fourth industrial revolution in delivering clear benefits in this regard remains unproven. To avoid redundancy with previous studies, a combined approach utilizing keyword analysis through preference landscape analysis and content analysis was employed. To this end, extracting all relevant papers and deeply analyzing studies from the Scopus database, the study results reveal that Lean research within the context of the fifth industrial revolution is still in its early stages. While existing research shows promising signs compared to previous revolutions, answering this question requires further time to assess the long-term costs and benefits.