I'm currently undertaking a migration between tenants. It is a lift-and-shift migration with all versions/content being migrated. I noticed that the data reported is vastly different and wanted to know what should be considered as "true". In particular, the target shows much more content than the source.
In the source, it's showing 30.9 MB in the source tenant
The same folder is showing 76.6 MB in the target tenant.