\ExplSyntaxOn
\sys_gset_rand_seed:n{42}
\ExplSyntaxOff
\DocumentMetadata{
  uncompress,
  pdfversion = 2.0,
  testphase = {phase-III,math,table},
}
\input{regression-test}
\documentclass{article}
\usepackage{unicode-math}
\tagpdfsetup{math/mathml/structelem,attach-css=false}
\begin{document}

$ \sqrt{x} $

$ \sqrt{\sqrt{x}} + 2 $

$ x = \sqrt{\sqrt[3]{y^2}} $

$\sqrt[3]{y}$
\end{document}