Many instructors offer a "lite" version of their masterclasses as a free introductory course.
Search for "Power BI" in the Udemy search bar, then scroll down to the Price filter and select "Free." udemy free course power bi
Learners seeking a solid foundation in Power BI can find useful on Udemy, but they typically cover only basics. For comprehensive, up‑to‑date Power BI training, official Microsoft learning paths or other platforms (YouTube, Microsoft Learn) may be more effective. This report identifies the best currently available free Udemy courses, evaluates their content, and provides recommendations. Many instructors offer a "lite" version of their