My initial guess was that migrating to a non-MacOS machine precludes the freedom to view the original Futura typeface on one's personal website. "The Future" must be some shoddy free alternative.

Except "The Future" is a paid typeface inspired by Futura and designed by the Klim Type Foundry. [0] The odd lowercase "h" is an alternative glyph probably meant for display sizes. [1] In addition to this for some reason the author is using the Light weight font for body text instead of Regular weight...

[0]: I love Söhne – https://klim.co.nz/blog/soehne-design-information/

[1]: https://klim.co.nz/fonts/the-future/#open-type/ss06/example