Why does the defaultValue in useWatch have a higher priority than the defaultValues in useForm?

[miro-ring]

In the document, it explains that the defaultValue of useWatch is used before the initial render. I understand that after the initial render, the value will change based on the defaultValues of useForm.

react-hook-form/src/logic/createFormControl.ts

Lines 553 to 572 in 22287a0

	const _getWatch: WatchInternal<TFieldValues> = (
	names,
	defaultValue,
	isGlobal,
	) =>
	generateWatchOutput(
	names,
	_names,
	{
	...(_state.mount
	? _formValues
	: isUndefined(defaultValue)
	? _defaultValues
	: isString(names)
	? { [names]: defaultValue }
	: defaultValue),
	},
	isGlobal,
	defaultValue,
	);

However, after checking the implementation, I found that the defaultValue in useWatch always takes higher priority.
When both defaultValues from useForm and defaultValue from useWatch are set, wouldn’t it be more appropriate to use defaultValues from useForm? Is there any benefit to using defaultValue in useWatch?