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

No freedom is absolute.

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.

Freedom of speech does not apply to:

Which IT career path involves little to no coding?

Child pornography

Conspiracy

Revenge porn

WWE Money in the Bank Results – 6/7/25 (Men’s and Women’s MITB Ladder Matches, Cena and Paul vs. Rhodes and Uso) - Wrestleview.com

False advertising

HIPAA violations

Insurrection

Presidential Message on National Men’s Health Week, 2025 - The White House (.gov)

Revealing classified information

Trade secrets

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.

A child had measles at Mall of America, concerning state health officials who don’t know source - Star Tribune

Threats of violence

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.

Fraud

New study predicts when the universe will end, scientists claim it is sooner than expected - Earth.com

Perjury

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

Is data science, machine learning, and AI very difficult? I’ve learned some Android development, but I didn’t like it. Should I learn Python, data science, machine learning? I like math and machine learning have a better growth rate

And much, much more.

Terroristic threats