Does FYI have a Login report showing when Client or Guest Users access Collaborate?

As Collaborate utilises Microsoft SharePoint, access and storage of documents is controlled through SharePoint and Microsoft Entra. 

This means that FYI does not create logs each time a client or guest user logs into the Collaborate site and accesses documents.

To obtain a log file, it's recommended to contact your Microsoft 365 Administrator to investigate Site Usage reporting options within Entra and SharePoint.