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.

Perjury

Fraud

Deals for Today: The Latest MacBook Air is Already Discounted, Cheap Controllers, and Big Savings on Father’s Day Gifts - IGN

Insurrection

Threats of violence

Insider trading

For the first time, an external factor turns a male mammal into a female - EL PAÍS English

False advertising

Revenge porn

Child pornography

My girlfriend told me that she wants to move in with me. I have my own apartment and I like my peace and quiet, but I also love her. We've been together for a year now. What should I do?

And much, much more.

No freedom is absolute.

Revealing classified information

What has been your best sexual experience?

Trade secrets

Freedom of speech does not apply to:

Terroristic threats

Do flat Earthers really exist? Why do they believe the Earth is flat?

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.

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

To prevent blackouts, Trump administration keeps another aging power plant online through summer - AP News

HIPAA violations

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.