After making a major change such as removing and re-adding a workload domain into vcf operations the Usage by Product report may show a higher count of license in use than actually deployed.
VCF Operations 9.0.0
Usage by product is a report generated at various intervals. In certain cases the report will not update correctly and will be reflecting stale information. Clicking on "License Usage" will show the actual correct license usage until the averaged license report is updated via the automated scripts. Engineering will be improving the reporting for that page.