HN should rejoice in the US gov using a font that is open and truly cross platform.
HN should rejoice in the US gov using a font that is open and truly cross platform.
But there are open-source metrically-compatible alternatives to all of them, commonly included in Linux distributions and/or office suites like LibreOffice.
Probably the most popular set is https://en.wikipedia.org/wiki/Croscore_fonts, with Tinos, Arimo, Cousine, and in the extended set Carlito and Caladea. The former most popular set is probably https://en.wikipedia.org/wiki/Liberation_fonts, with Liberation {Serif, Sans, Mono}.
But a given system is definitely less likely to have a Calibri alternative than a Times New Roman alternative.
I don't think it's included by default but the font itself will just work once you install it.
As for open fonts (can fonts even be truly closed in the first place?), Times New Roman is just as closed and proprietary as Calibri is.