Why are text Greek glyphs different from mathematical Greek in New Computer Modern, Latin Modern and Computer Modern fonts? The New CM comes with its own text Greek glyphs while for text Greek matching CM/LM, the fonts mentioned in this thread were suggested. Text Greek matches math Greek for Stix2, Libertinus, Concrete, XCharter, EBGaramond, etc. but not for CM/LM/NCM.
\documentclass{article}
\usepackage{fontsetup}
\begin{document}
\noindent New Computer Modern\\
Text Greek upright: αβγδεζηθικλμνξοπρστυφχψω\
Text Greek italic: \textit{αβγδεζηθικλμνξοπρστυφχψω}\
Math Greek upright: (\symup{\alpha \beta \gamma \delta \epsilon \zeta \eta \theta \iota \kappa \lambda \mu \nu \xi \omega \pi \rho \sigma \phi \psi \tau \omega})\
Math Greek upright: (\alpha \beta \gamma \delta \epsilon \zeta \eta \theta \iota \kappa \lambda \mu \nu \xi \omega \pi \rho \sigma \phi \psi \tau \omega) \
\setmainfont{STIX Two Text}
\setmathfont{STIX Two Math}
\noindent STIX2\\\\
Text Greek upright: αβγδεζηθικλμνξοπρστυφχψω\\
Text Greek italic: \textit{αβγδεζηθικλμνξοπρστυφχψω}\\
Math Greek upright: \(\symup{\alpha \beta \gamma \delta \epsilon \zeta \eta \theta \iota \kappa \lambda \mu \nu \xi \omega \pi \rho \sigma \phi \psi \tau \omega}\)\\
Math Greek upright: \(\alpha \beta \gamma \delta \epsilon \zeta \eta \theta \iota \kappa \lambda \mu \nu \xi \omega \pi \rho \sigma \phi \psi \tau \omega\) \\
\end{document}
