[Tadrill] I want to know specifically what "group" refers to in user synchronization

Question

I would like to know what "groups" refer to in Tadrill's user sync.

The following items are synced for Microsoft 365 and Google Workspace, respectively.

Name	Description
Microsoft 365	Microsoft 365 Group Mail-enabled security group Distribution list Dynamic group * Shared mailboxes are not included.
Google Workspace	Google Group