Cloudfare wants me to solve a capcha to access the site (firefox). Amazingly, if I turn off ublock origin, the capcha solves itself.
found it: privacy pass
The third-party cookie warning in the console is just a deprecation warning, it's not blocking them yet.
You can enable the flags to block thrid-party cookies right now in chrome://flags by searching for "cookie".
I wonder if it was the fact that I'm running firefox on FreeBSD.