How to download non latin glyphs TTF Google Fonts?

Question

Google

For a very long time I've been wondering how to download TTF for non-Latin scripts from Google Fonts.
I choose a font - any, the same Roboto for example. In addition to standard Latin, it also supports Latin Extended, Greek, Cyrillic, and more. I press Select this font, then I go to the box in the lower right corner, I press Download - TTF is downloaded only for the Latin script. If before that you go to the Customize tab and tick off the scripts that you want to download in addition to Latin, the picture is the same - only Latin is downloaded.
How to be?