Report's Layout

Sure! Once you have your reports in service (I recommend storing your pbix files in SharePoint, then uploading them from service rather than using the publish button in Desktop, but even if you use teh publish button in Desktop the rest of this will still work) you should see an option to either Create an App or Update App (depending on if you have one already) - I think on your screen it is this option: 

From there you will decide which reports and or dashboards to push to the app and who you want to share it with. Here are the instructions: Publish an app in Power BI - Power BI | Microsoft Learn

See, the reports look cleaner in the app for the end user. I suggest only giving co-collaborators/developers access to workspaces. Report and Dashboard consumers should access via app: