I’ve considered trying out Bunny fonts but decided to keep them localized.

My last few themes that I have released are using local fonts right from the start. Whereas, my older themes are slowly getting a revamp to bring them in sync as well. Some of them are more tricky because they allow users to select any typeface from Google Fonts within a Customizer setting. Unfortunately, there is no easy way to replace that option at this time; I’m still working on it.

I think Anders Norén has already finished doing that with his themes, with the exception of Chaplin.

As for disappointment with the ticket missing the window for 6.1 release, better late to get it right.