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

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.

Perjury

Fraud

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Terroristic threats

Trade secrets

Insider trading

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Revenge porn

Freedom of speech does not apply to:

Threats of violence

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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.

And much, much more.

Why is it that when the Democrats absolutely love everyone to be LGBTP, they don't even acknowledge that Barack Obama and his husband Big Mike are homosexual, and he is the first homosexual president of the USA?

HIPAA violations

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.

What is the reason for The Acolyte (2024 series) having poor reception among Star Wars fans?

No freedom is absolute.

Revealing classified information

Insurrection

Why are Americans obese? Is it the food or is it the psychology?

False advertising

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.