Why is Jeremy's interface simpler than the native Power BI service?
Microsoft's native Power BI service shows many menus built for authoring and administration (My Workspace, Get Data, Create, Learn, OneLake…), which Microsoft constantly reshuffles and which add nothing for a user who just wants to read a report.
Jeremy removes these menus and keeps only a clean, stable interface, organised into applications, so teams go straight to what matters without any special training.