How do I implement row-level security RLS in Power BI using DAX

How do I implement row-level security (RLS) in Power BI using DAX?

Row-Level Security (RLS) is a pivotal feature that enables data access based on roles in Power BI. This question aims to show how DAX can be used to introduce security filters to display only certain rows of data to certain users or groups. Emphasis is placed on creating security roles in Power BI Desktop, incorporating DAX expressions to limitations and data visibility, and publishing the reports with RLS settings designed for the protection of sensitive data in live reporting systems.