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

No freedom is absolute.

Freedom of speech does not apply to:

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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Insurrection

Revenge porn

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.

What made you recently say to yourself, “Wait. Really?”

Terroristic threats

Conspiracy

And much, much more.

ETH, SOL 'very rare' staking ETFs may launch imminently — Analysts - Cointelegraph

Trade secrets

HIPAA violations

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.

More studies show diet and nutrition are important in fighting cancer - WTOP

Threats of violence

False advertising

Revealing classified information

Reality TV star cited in Las Vegas for battery after knocking man out - AL.com

Insider trading

Child pornography

Perjury

Truck crashes into store at N.J. shopping mall, police say - NJ.com

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.

Fraud