I recently discovered this as well. A bit unnerving. I now use Cryptomator (because key destruction matters).

By default, loading Google Fonts from Google’s servers exposes user data to Google (e.g., IP Address, User agent, Referrer, Timestamps, Cache identifiers).

It's passive tracking, but it's tracking.

Check out "Extreme Privacy - MacOS Devices" (Michael Bazzell, 2023), pg. 17.