Align authors and title in beamer title page

Question

I would like to add multiple authors with their affiliations in columns in the beamer title page. I am using the metropolis theme.

It almost works, but the aligment with the first author should be with the title and the orange line. The three authors should be arranged evenly through the orange line. How can I do this? Thank you!

MWE:

\documentclass[aspectratio=169]{beamer}
\usetheme{metropolis}

\title{Title of the paper}%
\author{%
\texorpdfstring{
\begin{columns}
\column{.33\textwidth}
Author 1\\
Inst 1
\column{.33\textwidth}
Author 2\\
Inst 2
\column{.33\textwidth}
Author 3\\
Inst 3
\end{columns}
}{Authors}}%

\date{February 2023}%

\begin{document}

\begin{frame}[plain]%
\titlepage%  
\end{frame}%

\end{document}

Answer 1

This uses a one line patch (onlytextwidth).

\documentclass[aspectratio=169]{beamer}
\usetheme{metropolis}

\title{Title of the paper}%
\author{%
\texorpdfstring{
\begin{columns}[onlytextwidth]
\column{0.33\textwidth}
Author 1\\
Inst 1
\column{0.33\textwidth}
Author 2\\
Inst 2
\column{0.33\textwidth}
Author 3\\
Inst 3
\end{columns}
}{Authors}}%

\date{February 2023}%

\begin{document}

\begin{frame}[plain]%
\titlepage%  
\end{frame}%

\end{document}