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

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.

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.

Conspiracy

Russell's F1 Canadian GP win in doubt after Red Bull protest - Autosport

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.

Insider trading

False advertising

Smoking Weed and Eating Edibles Share This Surprising Health Risk - Gizmodo

Revealing classified information

Freedom of speech does not apply to:

Revenge porn

Earthworm DNA may challenge everything we know about evolution - Boy Genius Report

Perjury

Fraud

And much, much more.

UNC Falls to Oklahoma, Setting Up Winner-Take-All Finale in Regional - 247Sports

Terroristic threats

Threats of violence

Child pornography

Sean Combs Trial: Second Mistrial Motion, 'Freak-Off' Audio and Peek Inside Mogul's Bank Accounts - Rolling Stone

HIPAA violations

No freedom is absolute.

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.

How do schizophrenia symptoms change throughout the day?

Insurrection

Trade secrets