Hey Ali,
So the biggest thing I struggled with in Power BI is getting over the hurdle that it's really not designed for showing good pivot style data. It has a Matrix visual, but I've never liked it, and their conditional formatting is... awful. When you compare it to the polish of what Excel offers, that mechanism for reporting truly leaves something to be desired. If you just want to put out a static report like in your Excel file, there is nothing stopping you from using Power Query to source the data and a Pivot Table to report it the way you're doing. If you're on Office 365 you can even publish that to Power BI and interact with it in Excel online.
Where Power BI shines though, is if you change the thought process and start looking at other visuals. Power BI is meant to be a visual summary that is cross filterable and drill-able. That's the good part about it.
I've added a quick sample that shows both a matrix (pivot) a chart and a slicer. This is obviously VERY rough, but click some boxes in the slicer to see how the drill down ability works.
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