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

Insurrection

Child pornography

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.

Agent-based computing is outgrowing the web as we know it - VentureBeat

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

Threats of violence

Out-of-Body Experiences Could Be Coping Mechanisms Instead of Pathology, New Research Suggests - The Debrief

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:

Fraud

Two University of Wisconsin-Milwaukee researchers part of global team that discovered a new object in space - Milwaukee Journal Sentinel

Revealing classified information

Insider trading

No freedom is absolute.

Physicists Catch Light in 'Imaginary Time' in Scientific First - ScienceAlert

HIPAA violations

Terroristic threats

False advertising

Israel recovers bodies of three dead hostages from Gaza - BBC

And much, much more.

Revenge porn

Trade secrets

What does "feeling like your life is over" mean and why is it not in any dictionary online?

Conspiracy

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.