SymbolNeu is the only viable alternative to Microsofts "symbol.ttf" font [1].
However, SymbolNeu was dropped in croscore > 1.23.0 unfortunately. I think it
makes sense to add it back to the pacakge, similar to the Noto Mono font. A
download link can be found here [2].

Cheers,
Stephan

[1]:
https://gitlab.freedesktop.org/fontconfig/fontconfig/-/blob/main/conf.d/30-metric-
aliases.conf
[2]: https://gsdview.appspot.com/chromeos-
localmirror/distfiles/croscorefonts-1.23.0.tar.gz