Including "et al." in my bibliography with \bibliographystyle{plain} - beamer

Question

I want to use \bibliographystyle{plain} and cite a software in my Beamer presentation that has a LOT of authors. How can I make my Beamer automatically cite the first author and add "et al." if the number of authors is more than 3?
Here's what the reference in my .bib file (Mybibliography.bib) looks like
#software{MNESoftware,
author = {Larson, Eric and
Gramfort, Alexandre and
Engemann, Denis A and
Leppakangas, Jaakko and
Brodbeck, Christian and
Jas, Mainak and
Brooks, Teon and
Sassenhagen, Jona and
Luessi, Martin and
McCloy, Daniel and
King, Jean-Remi and
Goj, Roman and
Favelier, Guillaume and
Höchenberger, Richard and
Brunner, Clemens and
van Vliet, Marijn and
Wronkiewicz, Mark and
Holdgraf, Chris and
Massich, Joan and
Bekhti, Yousra and
Rockhill, Alex and
Appelhoff, Stefan and
Leggitt, Alan and
Dykstra, Andrew and
Luke, Rob},
title = {MNE-Python},
year = 2022,
publisher = {Zenodo},
version = {1.2.1},
}
\documentclass[10pt]{beamer}
\usepackage[utf8]{inputenc}
\usepackage{hyperref}
\usepackage{natbib}
\begin{document}
\section{Bibliography}
\begin{frame}[allowframebreaks]{Bibliography}
\tiny
\nocite{*}
\bibliographystyle{plain}
\bibliography{Mybibliography}
\end{frame}
\end{document}
Currently, my beamer is displaying all the authors. Can someone please tell me how do I achieve the "et al."?