Power BI Preview (before Publish)
I am an ASP net dev in MSVS and we have the ability to see our work as any www user would via a preview in the browser (any browser), Power BI as no preview before publish. Therefore I can not see the final and exact user experience of the output. You see a preview in Excel, MS Access, MS Word. But not Power BI (note I am not talking about a print preview) am talking about a exact preview of the user experience before publish or distribution.
Nick Doy commented
Can you not just publish the app with permission set to just a group you create that includes only the Dev team?