https://learn.microsoft.com/en-us/power-platform/admin/programmability-tutorial-cross-tenant-reporting

Feature Create cross tenant isolation reports is having some drawbacks:

The existing report is limited for both the period as well as visibility of the data. We can only see outbound connections, but not inbound. Hopefully there will be some solution to this soon.

The limit is only 30 days, while we need reports for 3 months.