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

And much, much more.

Terroristic threats

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.

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Child pornography

Trade secrets

Insider trading

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Fraud

Revenge porn

Freedom of speech does not apply to:

Why cant I motivate myself to go to school (grade 10)?

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.

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.

Is it okay if I am not interested to talk to any of my relatives as I saw the real faces in my brother's marriage as none of them helped us rather were a kind of disappointment and were talking bad?

Revealing classified information

Threats of violence

Conspiracy

Pacers’ Tyrese Haliburton stuns Thunder in last second to open NBA Finals - The Washington Post

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.

No freedom is absolute.

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HIPAA violations

False advertising