Who is authority

• Dedicated server: the server is authority for every player.
• Listen server: the host is authority for every player. Remote clients are not.
• Standalone: you are authority. If you ship only Standalone, open the Solo pages.

Gameplay that runs on the server can call the nodes directly. Examples: damage and overlap on the server actor.

Gameplay that runs on the owning client (some input, some widgets) can still call the same nodes. The component sends a Server RPC.