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

No freedom is absolute.

Insider trading

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.

Nicolas Jackson helps Senegal to 3-1 victory over England - We Ain't Got No History

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.

Threats of violence

False advertising

What is the Replika app, and how does it work?

Revealing classified information

And much, much more.

Revenge porn

Can an infrared sauna blanket assist in weight loss along with detoxification?

Terroristic threats

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

‘Borderlands 4’ Is Now My Most-Anticipated Game Of The Year - Forbes

Trade secrets

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.

Freedom of speech does not apply to:

Why do men first look at a woman's chest instead of their face?

Child pornography

Fraud

HIPAA violations

US oil output set for first annual drop since pandemic - Financial Times

Perjury

Conspiracy