`hyperref` makes `varioref`'s `\vrefformat` no-op

Currently, hyperref makes varioref's user customization option \vrefformat no-op, as shown in the MWE below:

\documentclass{article}

\usepackage[nospace]{varioref}
\usepackage{hyperref}

\renewcommand*{\vrefformat}[2]{%
  Foo \ref{#2} \vpageref[#1]{#2}}

\begin{document}

\section{Section 1}
\label{sec:section-1}

\clearpage{}

\vref{sec:section-1}

\end{document}

Renders:

Commenting hyperref out of the above document renders:

This happens because hyperref redefines \vr@f and \vref@star (I haven't tested, but I presume the same problem occurs with \Vref for the same reason). And does so without using \vrefformat (and \Vrefformat), but hard-coding the formats in the redefinitions it makes.

As far as I can tell, this is done at: https://github.com/latex3/hyperref/blob/c25f44c5d880a5897376d947957e7a129b376e6c/hyperref.dtx#L13027-L13058

I don't know if there's a reason for this that I've missed, but it seems possible, at first glance, to use \vrefformat instead of hard-coding it (maybe redefining \vrefdefaultformat for this). And thus not override this user option from varioref.

Edit: Besides what was already mentioned, the above also means that \usepackage[japanese]{varioref} won't work with hyperref (well, theoretically at least, I don't actually know how to set up a document in Japanese).

Start with hyperref.dtx around lines 13027–13058, focusing on the redefinitions of \vr@f and \vref@star, then compile the supplied LaTeX MWE with and without hyperref. Confirm that a customized \vrefformat is honored when hyperref is loaded, and investigate whether the corresponding \Vref behavior is also covered.