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.

Threats of violence

False advertising

How do I get my body in shape?

Revenge porn

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.

Perjury

How did Kate Mulgrew feel about Jeri Ryan joining the cast of Star Trek: Voyager?

Freedom of speech does not apply to:

Revealing classified information

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.

In what circumstances might a chaperone be appropriate for a medical examination?

And much, much more.

Trade secrets

Child pornography

Scientists Predict a Million-Fold Drop in Oxygen — Here’s What it Means for Earth’s Future - The Daily Galaxy

Terroristic threats

Fraud

Insurrection

Why did Sumire's summoning Nue act strangely in response to Kawaki's karma?

HIPAA violations

Insider trading

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.

Can the effects of hormone replacement therapy (HRT) be reversed?

Conspiracy

No freedom is absolute.