Duncan's response to the mutiny before Camperdown

How much did Admiral Duncan need to press matters in London after the mutiny before Camperdown?

Relatively little: he had managed the trouble in his own force, and the sea lords had handled much of the wider problem before he returned.

Duncan had dealt reasonably well with the mutiny affecting his own force. By the time he returned to London, much of the wider trouble had already been handled by the sea lords. The mutinies farther up the estuary had a different character and a closer effect on London. These distinctions matter when assessing what Duncan personally needed to demand or resolve.