When you create a report, you can delete it.
⚠CAUTION: You can't reverse deleting a report. So only click delete if you're sure you want to remove it for all users.
If you want to keep it, but no longer have it appear for other users, you can duplicate the report and keep it as a draft, then delete the original.
Click the Reporting tab.
In the left-hand menu, click Reports. You can see your 'Published' and 'Draft' reports.
Click the option where the report sits currently, for example, Published.
Click on the report, then click Delete.
The report no longer appears for any Futrli user.