jetstream contains nothing related to roles and permissions
You should carefully consider doing multi-auth because it always ends up being a confusing mess. I NEVER use or recommend it.
Users are users. don't segregate them. Use authorisation to control what they can do. if you need to store different profiles because they are vastly different then consider having multiple profile types not multiple authentication models
http://novate.co.uk/using-laravel-polymorphic-relationships-for-different-user-profiles/
(my post)