If freedom of speech is absolute, how come it's not applied...

That’s what it is. You have no right to use other people’s stuff. If people let you use their stuff, they can tell you how you can use it, and they can tell you to stop using it any time they want.

Freedom of speech does not apply to:

False advertising

Physicists Unveil New Quantum Super Material That Could Revolutionize Electronics - SciTechDaily

Revealing classified information

You have freedom to travel. If I loan you my car, I can tell you not to take it out of town, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Perjury

What is your favorite underrated movie and why? What makes it underrated? How did you find it?

Insurrection

You have freedom of speech. If I loan you my computer, I can tell you not to use it for certain things, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Fraud

Gators Face Fairfield With Season On Line; O'Sullivan Beat Long Odds as Clemson Assistant - Florida Gators

HIPAA violations

Conspiracy

Terroristic threats

Why does a college girl cover her face with a scarf in Bangalore?

If you’re wondering why free speech doesn’t apply to the internet, it’s because you have no right to use other people’s stuff for free.

And much, much more.

Trade secrets

New study raises big questions about taurine as anti-aging supplement - Live Science

Child pornography

Revenge porn