A collection is simply a way to organize projects together. We've seen them used to sort by marketing campaign, departments within an organization, or even different clients for agencies.
Collections are also used as a permissions barrier. While admins can see all collections by default, members are only able to see the collections they've been invited to. This allows you to bring in external contractors to work on specific collections or help focus your team on only the essential projects that pertain to them.
If you'd like to discuss a structure that best suits you please feel free to reach out to us at email@example.com.