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

Freedom of speech does not apply to:

And much, much more.

Revealing classified information

Cher’s Son Elijah Blue Allman Hospitalized After ‘Acting Erratically’ - Rolling Stone

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.

False advertising

Threats of violence

Bradford researchers solve mystery of disease and wool trade - BBC

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.

Fraud

Insurrection

What are some dirty secrets of Indian (Bollywood, etc.) actors and actresses?

Trade secrets

Child pornography

Terroristic threats

How AI Mode and AI Overviews work based on patents and why we need new strategic focus on SEO - Search Engine Land

HIPAA violations

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.

What are the signs of legitimate BPO project opportunities versus scams?

No freedom is absolute.

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

Scientists Solve 50-Year Mystery of Strange Zone Deep Inside Earth - SciTechDaily

Perjury

Revenge porn