When using wp.data.dispatch( 'core/notices' ).createInfoNotice and trying to pass a function for the onDismiss option, the function is not triggered when the notice is dismissed.

Typing something like wp.data.dispatch( 'core/notices' ).createInfoNotice( 'hello', { onDismiss: () => { console.log( 'dismissed!' ) } } ); is not logging anything in the console, when the created notice is dismissed.

Further information can be found here.