Fair, I was being loose with my language. What I should have said is that it does not come fully featured open source, that you need to do a certain amount of rolling your own.
Edit, since I can't reply sadly:
You're right, that was a bad example.
I can probably list at least a few dozen things that all require certificates though, which was really my point. Everything has dependencies.
Also if you just... Don't trust big tech, run your own CA.