If freedom of speech is absolute, how come it's not applied for private spaces and for the Internet?

Freedom of speech does not apply to:

Insurrection

No freedom is absolute.

Pokémon Cafes To Serve Incredible-Looking Plate Of Food That Can Mega Evolve Before Your Eyes - Kotaku

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.

Trade secrets

Perjury

Is modular building a fix for NY's housing crisis? State officials hope so. - Gothamist

Revealing classified information

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.

Insider trading

Something Big Is Twisting Mercury’s Crust - Gizmodo

HIPAA violations

False advertising

Revenge porn

Do you think the constitution and laws should be taught in school?

Fraud

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.

Child pornography

Why do only ugly women like me on Tinder? Is it because I'm an ugly man?

Threats of violence

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.

Terroristic threats

What is the most unwatchable movie you have sat through?

Conspiracy

And much, much more.