Hi @SteveKirchner
I downloaded the latest version of Report Builder on my Windows 2016 test machine and it actually works. You can also download report builder from the SSRS web portal.
For more details about downloading Report Builder, you can see this link: https://learn.microsoft.com/en-us/sql/reporting-services/install-windows/install-report-builder?view=sql-server-ver16
Best regards,
Aniya