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.

HIPAA violations

Revenge porn

Mazda Blamed Owners Until Regulators Stepped In - Carscoops

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.

False advertising

Freedom of speech does not apply to:

Neanderthals Spread Across Asia With Surprising Speed—and Now We Know How - Gizmodo

Revealing classified information

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.

Insider trading

Ireland added to list of countries monitored by the U.S. for currency manipulation - Fortune

No freedom is absolute.

Conspiracy

Terroristic threats

Have you made a female relative or friend squirt?

Child pornography

Fraud

Trade secrets

PlayStation Fans Call New PS1 Remake Announcement the "Best News This Year" - ComicBook.com

And much, much more.

Insurrection

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.

How does the narcissist react when he realizes you no longer care?

Threats of violence

Perjury