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

Perjury

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:

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Insider trading

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.

Terroristic threats

What type of sex do women prefer, oral, anal, or vaginal?

Revenge porn

No freedom is absolute.

Threats of violence

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False advertising

And much, much more.

HIPAA violations

Why do men date women they are not really interested in?

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.

Insurrection

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Revealing classified information

Fraud

Conspiracy

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Trade secrets

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.