In Excel, you have the option of deciding what a Data Label shows, such as the series, category, or value. In Power BI Line Chart it only allows you to display the value. Please add in more granular ...
Excel can do it, Tableau can do it, R can do it, but PowerBI can't add add direct labeling to line charts... https://depictdatastudio.com/directly-labeling-line-graphs/
