Updated
Yes — Bona Nova is free to download from Google Fonts. Read the licence it ships with before you use it in client work.
Bona Nova is a digitisation of Bona, a cursive typeface designed in 1971 by Andrzej Heidrich — the creator of Polish banknotes. Besides giving it a digital form, this project was the opportunity to expand the character set, design the small caps, alternates and opentype functions for the typeface. Two new versions has been created together with the original author; a Regular and a Bold, to give the family a form of a classical triad.
A1 features 1 website using Bona Nova. It leans towards Serif, Minimal, and Light design styles, and it’s most often built with Framer.