I think there is wrong statement in online session interface documentation page.
Engine version: 4.27
Detailed description of the issue: On this documentation page there is this statement
The session interface is created and owned by the OnlineSubsystem. This means it only exists on the server.
That sounded wrong because how can we search or join the session from the clients?
So I made this code snippet
bool UGameInstanceSubsystem::IsThereAnyOnlineSessionInterface()
{
const IOnlineSessionPtr SessionInterface = Online::GetSessionInterface(());
return SessionInterface.IsValid();
}
and that returned true on both listen server and also on connected clients.
Screenshots:
