Thank you for adding a post here in the Community. I'm here to help share information about filtering reports in QuickBooks Online (QBO).
There are four ways to apply filter when running reports in QBO. You can filter to All, Select Multiple, Specified and Not Specified.
You can also filter the Transaction Type, Account, Distribution Account, Name, Customer, Vendor, Employee, Product/Service and Location.
You can check this article for additional reference on how to customize and filter reports in QBO: How to customize reports.
If you need further assistance with filtering the reports, you can get in touch with our QuickBooks Online Support Team.
Keep me posted if you have any other concerns about running reports in QBO. It's my pleasure to help!