This code
\documentclass[12pt]{article}
\usepackage{multicol}
\usepackage{lipsum}
\begin{document}
\setlength\baselineskip{4ex plus 2ex minus 2ex} % Exagerated on purpose
\section{Title}
\begin{multicols}{2}
\lipsum[2]
\end{multicols}
\section{Title}
\begin{multicols}{2}
\lipsum[2]
\end{multicols}
\section{Title}
\begin{multicols}{2}
\lipsum[2]
\end{multicols}
\end{document}
produces this
Is there a way to have a constant line spacing across elements that are in the same page (while still having the stretchable component of baselineskip)?
Goal: