I just didn't find where to enter the Google Fonts API key.
There are almost no fonts in the existing set that support extended Cyrillic. And I know for sure that Google has a huge number of such fonts.
But I don't find most of them in the existing set. Previously, when I could update fonts, I could easily find those fonts published in Google Fonts.
Why can't I enter my API anywhere? As a result, I just get a font update error. If this function does not provide for updating by a button, why is it needed there at all, what is the hidden meaning in it?