Which knowledge base tools are known for full-text search and permissions and roles?

Knowledge base tools that are commonly known for full-text search plus permissions/roles include:

• Confluence — strong full-text search, page restrictions, space permissions, and role-based access control.
• Notion — full-text search across pages/databases; workspace and page-level sharing/permissions.
• SharePoint — robust enterprise search, detailed permissions, and role-based access.
• MediaWiki — full-text search via extensions/indexing; user groups, namespaces, and permission controls.
• Guru — full-text search over knowledge cards; role-based access and team permissions.
• Document360 — full-text search for internal/external KBs; granular user roles and access permissions.
• Zendesk Guide — search across help center content; roles, groups, and permission settings.
• Helpjuice — full-text search and permission controls for internal/external knowledge bases.
• Nuclino — search across knowledge base content; workspace/team permissions and roles.
• Slite — search and collaborative access controls with workspace permissions.

If you want, I can also narrow this down to:

1. open-source tools,
2. self-hosted tools, or
3. tools best suited for enterprise internal knowledge bases.