Disable/delimit functions for users or define roles

I want to use Nextcloud as an intranet for an organisation. I do not want users to have their own personal calenders or files and do not want them to sync their personal folders via a client. Is it possible to delimit the users rights in that way?

I guess I want something like ownCloud roles https://doc.owncloud.org/server/latest/admin_manual/configuration/user/user_roles.html