There is a plugin I use...I can't remember if it is from a WPTavern post or comment on here.

Local Google Fonts: https://wordpress.org/plugins/local-google-fonts

I understand the reason for third-party usage, like Gravatar, I don't have to upload a 512x512 (or whatever size) to every site I manage.
Obviously the disadvantage is having to upload the same file on different sites. If you want to update it, repeat the process, With Gravatar it is one upload for all sites.

I've been pushing away from third-party usage like Akismet and Google Analytics. Anything that I have to connect somewhere else.