I am a bit confused about the roles in a regular Jira project. This is a Project Management template, company-managed, in the free Jira version.
Via Project Settings > People, I can select 3 roles: 'Administrators', 'Service desk customer' and 'service desk team'. But these are Service Management roles? Why are these roles shown if I am in a "regular" Jira project, not a service desk one?

I did create a specific group for this project, but as we have a free version, everyone can see everything and I can just rely on the 'any logged in user' for now.
Another question is, should my regular users show up in the 'People' overview?
Thanks in advance.