template.typ uses charged-ieee, which specifies TeX Gyre Termes, which must not be available as it’s using Libertinus. I can tell by the cool “p” in the italic “Typst GmbH”.
I know Google Fonts is planned, but I think if the system had at least the fonts that were on typst.app, that would be better. Or if it showed warnings when fonts weren’t available.
Since Google Fonts has modified, less feature-rich versions of fonts, this creates an issue. I wish we had a public repository of fonts with all of their versions that Typst could automatically download to a cache and use. If users could specify an exact version of a font in their source, the document would come out the same way every time.