According to my pi-hole installation gstaticadssl.l.google.com is blocked by this:
Match found in https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts:
gstaticadssl.l.google.com

This would not be a problem but...
fonts.gstatic.com. 300 IN CNAME gstaticadssl.l.google.com.
gstaticadssl.l.google.com. 300 IN A 172.217.21.3

This means that all CDN Google fonts used will not work anymore.
However, given the name "g static ad ssl" this might be a change that would show more Google ads probably.

This is however very annoying. Though I could just add a custom exception in pi-hole I think I'm not the only one who does not like Google Fonts not working anymore per default.