I've tried to get the math scaling right in a number of different ways, but have failed. What is the proper syntax here?  enter link description here seems relevant, but that didn't work.

% !TeX program = lualatex
\documentclass{article}


\usepackage[no-math]{fontspec}
\usepackage{unicode-math}
\usepackage{lipsum}

\setmainfont{Baskervaldx-Reg}[Scale=0.2]
\setmathfont{Baskervaldx-Reg}[Scale=0.2]

\begin{document}
\lipsum 

$x=y$ 

\lipsum
\end{document}

I've tried to get the math scaling right in a number of different ways, but have failed. What is the proper syntax here? The posting unicode math font smaller than the text seems relevant, but that didn't work.

% !TeX program = lualatex
\documentclass{article}


\usepackage[no-math]{fontspec}
\usepackage{unicode-math}
\usepackage{lipsum}

\setmainfont{Baskervaldx-Reg}[Scale=0.2]
\setmathfont{Baskervaldx-Reg}[Scale=0.2]

\begin{document}
\lipsum 

$x=y$ 

\lipsum
\end{document}